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11Results forConcave lens Tenders List

Latest Concave lens Tenders in India – Verified Leads & Real-Time Insights by Tender18

Finding the right Concave lens tenders in India’s competitive e-procurement ecosystem requires more than just access—it demands accurate data, real-time monitoring, and expert analysis.

At Tender18 Infotech Private Limited, we bring deep industry experience in government procurement to help businesses identify, evaluate, and win Concave lens tenders efficiently. With a centralized platform aggregating 1100+ live tenders, we provide a single, trusted source for opportunities from central, state, and PSU departments.


Real-Time Concave lens Tender Intelligence & Monitoring

Our advanced dashboard delivers actionable insights and structured tender data, enabling you to make faster and smarter bidding decisions.

We categorize Concave lens tenders into:

  • Supply Tenders – BOQs and specifications sourced from GeM and PSUs
  • Service Tenders – NITs and scope of work from CPPP and state portals
  • EPC Projects – Large-scale infrastructure tenders with financial and design data

✔ This structured approach ensures complete transparency and deeper bid analysis before submission.


Comprehensive Sources of Concave lens Tenders

Tender18 acts as a centralized gateway by aggregating tenders from trusted and official sources:

  • Central Government Portals – CPPP, NIC, and Government e-Marketplace (GeM)
  • Railways & Transport – IREPS and Metro Rail projects
  • Power & Energy PSUs – NTPC, ONGC, NHPC, PowerGrid
  • Defense & Strategic Sectors – MES and DRDO tenders
  • State e-Procurement Portals – Gujarat, Maharashtra, Tamil Nadu, UP, and more

✔ Every listing is verified and regularly updated to maintain data accuracy and trust.


Step-by-Step Guide to Participate in Concave lens Tenders

1. Eligibility & Prequalification

Before bidding, ensure compliance with:

  • Financial turnover requirements (30–50% of tender value)
  • Past experience (2–3 similar projects)
  • Valid solvency certificate

2. Mandatory Documentation Checklist

Prepare the following to avoid disqualification:

  • Digital Signature Certificate (Class 3 DSC)
  • GST, PAN, MSME/Udyam registration
  • EMD (Earnest Money Deposit) or exemption proof
  • Technical bid with execution methodology

3. BOQ Analysis & Financial Bidding

The BOQ (Bill of Quantities) is the most critical component:

  • Analyze item-wise pricing
  • Ensure competitive yet sustainable quotes
  • Avoid underbidding risks (L1 pressure)

✔ Expert analysis can significantly improve your bid success ratio.


Why Tender18 is a Trusted Platform for Concave lens Tenders

✔ Proven Expertise in Government Procurement

We combine industry knowledge with practical bidding experience.

✔ Verified & Reliable Data

All Concave lens tenders are sourced from official portals and cross-checked for accuracy.

✔ Advanced Filtering Tools

Filter tenders by value, EMD, location, and category for precise targeting.

✔ Corrigendum & Update Tracking

Get instant alerts on deadline changes and specification updates.

✔ Historical Data Insights

Analyze past tender results to understand pricing trends and competition.

✔ End-to-End Bidding Support

From discovery to submission, including GeM onboarding and strategy.


Growth of Concave lens Sector in 2026

With the Government of India focusing on digital procurement and infrastructure expansion, the Concave lens sector has seen significant growth in e-tendering opportunities.

The rise of GeM-based procurement models like:

  • L1 Purchase
  • Direct Procurement
  • MSME-friendly policies

…has made it easier for startups and SMEs to participate and win contracts


Frequently Asked Questions (SEO Optimized)

How can I get daily Concave lens tender alerts?

You can register on Tender18 and select your preferred category. You will receive daily email alerts with all new Concave lens tenders.

Is EMD mandatory for all Concave lens tenders?

No, MSME and Udyam-registered businesses may get exemptions. Always check the NIT for specific conditions.

What is the difference between a Concave lens work tender and supply tender?

A supply tender involves delivering goods, while a work tender includes execution, labor, and project completion.

Can I access private Concave lens tenders on Tender18?

Yes, we also track major private sector and EPC tenders along with government opportunities.


Get Expert Support for Concave lens Tenders

Tender18 is more than a listing platform—we are your strategic partner in winning tenders.

Our services include:

  • Tender discovery & analysis
  • Documentation support
  • Bid strategy & submission
  • GeM registration & OEM onboarding

📞 Call / WhatsApp: +91 7069661818
🌐 Website: www.tender18.com

T18 Ref No : 15982571
new Tender
Location : varanasi , uttar pradesh
Source : GEM Tenders
new Tender

tender for glassware items beaker , boiling tube class a , boropure cellulose nitrate membrane , bottle top dispensers , bulb pipettes class a , china dishes , conical flask , cover glass , crystallizing dishes , drying trays , erlenmeyer conical flask , filter paper whatman grade 1 , flat bottom evaporating dishes , flat bottom flask , glass dishes , glass filter funnel , glass mortar and pestle , glass rods , magnetic stirrer bar , measuring cylinder class a , microscope glass slides , pipette graduated class a , pipette controller , pyknometer class a , reagent bottles wide mouth , reagent bottles with glass stopper , round bottom flask , s line petri dishes , separating funnel, pear shape , single channel variable vol pipette , spare extractor 100ml , specific gravity bottle , test tubes , test tubes with stopper class a , variable micropipette , viscometer college pattern , volumetric flask class a , watch glasses , beaker 1000ml , beaker 250ml , beaker 500ml , burette with staright bore glass key stopocok 25ml , burette with staright bore glass key stopocok 50ml , capillary tubes tlc 100mm , chemical thermometer , construction of agulated tube melting point tube , college pattern center support pack of02 , concave lens , concave mirror , convex lens , cover slip , crystallizing dish with spout , distillation apparatus , dropping bottle 125ml , dropping bottle 125ml 12 pk , flask flat bottom single neck 250ml , flask volumetric 100ml , flas volumetric 50ml , flas volumetric250ml , flask flat bottom single neck cap 100ml , flask round bottom single neck cap 250ml , flask volumetric 500ml , flassk round bottom single neck cap 100ml , gas genearator kipps with ground glass joint 500ml , glass desiccators plain 210mm , glass dropper 6 , glass rod , glass stopper size 19 , graduated cylinder 100ml , graduated cylinder 10ml , magnifying glass with led , measuring cylinder 50ml , measuring cylinder 100ml , measuring cylinder 10ml , measuring cylinder 250ml , measuring cylinder 500ml , melting point tube , micro scale ocular micrometer , micro slide , optical prism , ostwald standdard size viscometers , ostwald viscometer , petridishes plain , pipette , reagent bottle , reagent sprayer for tlc 100ml , separating funnel 100ml , separating funnel 125ml , separating funnel 250ml , soxhlet extraction appratus 200ml , stopper hollow hexagonal head con size , test tube with rim 15ml , test tube 15ml , thermometer , thermometerchemical , thiele tube pack of 06 , thieles tube , volumetric flask 50ml with stoper , volumetric flask , weighing bbottle tall form cap 60ml, beaker, boiling tube class a, boropure cellulose nitrate membrane, bottle top dispensers, bulb pipettes class a, china dishes, conical flask, cover glass, crystallizing dishes, drying trays, erlenmeyer conical flask, filter paper whatman grade 1, flat bottom evaporating dishes, flat bottom flask, glass dishes, glass filter funnel, glass mortar and pestle, glass rods, magnetic stirrer bar, measuring cylinder class a, microscope glass slides, pipette graduated class a, pipette controller, pyknometer class a, reagent bottles wide mouth, reagent bottles with glass stopper, round bottom flask, s line petri dishes, separating funnel, pear shape, single channel variable vol pipette, spare extractor 100ml, specific gravity bottle, test tubes, test tubes with stopper class a, variable micropipette, viscometer college pattern, volumetric flask class a, watch glasses, beaker 1000ml, beaker 250ml, beaker 500ml, burette with staright bore glass key stopocok 25ml, burette with staright bore glass key stopocok 50ml, capillary tubes tlc 100mm, chemical thermometer, construction of agulated tube melting point tube, college pattern center support pack of02, concave lens, concave mirror, convex lens, cover slip, crystallizing dish with spout, distillation apparatus, dropping bottle 125ml, dropping bottle 125ml 12 pk, flask flat bottom single neck 250ml, flask volumetric 100ml, flas volumetric 50ml, flas volumetric250ml, flask flat bottom single neck cap 100ml, flask round bottom single neck cap 250ml, flask volumetric 500ml, flassk round bottom single neck cap 100ml, gas genearator kipps with ground glass joint 500ml, glass desiccators plain 210mm, glass dropper 6, glass rod, glass stopper size 19, graduated cylinder 100ml, graduated cylinder 10ml, magnifying glass with led, measuring cylinder 50ml, measuring cylinder 100ml, measuring cylinder 10ml, measuring cylinder 250ml, measuring cylinder 500ml, melting point tube, micro scale ocular micrometer, micro slide, optical prism, ostwald standdard size viscometers, ostwald viscometer, petridishes plain, pipette, reagent bottle, reagent sprayer for tlc 100ml, separating funnel 100ml, separating funnel 125ml, separating funnel 250ml, soxhlet extraction appratus 200ml, stopper hollow hexagonal head con size, test tube with rim 15ml, test tube 15ml, thermometer, thermometerchemical, thiele tube pack of 06, thieles tube, volumetric flask 50ml with stoper, volumetric flask, weighing bbottle tall form cap 60ml


Tender Value : 0
Due Date : Jul 15, 2026
T18 Ref No : 15779779
live Tender
Location : ayodhya , uttar pradesh
Source : GEM Tenders
live Tender

tender for ammeters different range , battery eliminator , daniell cell , drawing board , friction apparatus complete set with weight box , galvanometer , parallelogram apparatus , key one way , jockey pencil type , two-way key , laclanche cell , meter bridge , multimeter digital , multimeter manual , magnetic compass , optical bench 1 meter long , prism indian glass , potentlometer , plier , cutter , screwdriver , scissor , resistance box , dry cell 10g chargeable , dry cell charger , helical spring apparatus with weights , rheostat , resistance coil different range 1-5 ohms , resonance appratus , spherometer , screw gauge , wooden scale 1 50cm 1 100cm , stopwatch , sonometer , sprit level , thermometer , tuning fork 250hz 480hz and 512hz withpad , vernier calliper , voltmeter different range , beakers , connecting wires , charts for display blovisuals , portraits as pe choice , concave mirror , convex mirror , convex lens , concave lens , wedge knife edge for sonometer , glass slab , pendulum box , cork rubber 1.5 inches , hanger weights 500 gm , insulated copper wire , meter tape 1-100 meter , soldering iron , spring balance 0- 250 gm , u-shaped magnet , copper calorimeter , epidiascope , newton disc , telescope , camera , barometer tube , lactometer , stove oil , electric bell , proof plane , binoculars , soldering rods , pn junction diod set up , desktop set , balance physical , boyle law apparatus , portnis barometer , metallic cylinders , metal sphere , sg bottles , grave sand apparatus , young modulus , spectrometer , hydrometer , sprit level , potentiometer , silk and cat skin pieces , tuning fork , ammonium chloride , all pins 1.5 , copper sulphate , drawing pins , thread rolls, tlm samagri, ammeters different range, battery eliminator, daniell cell, drawing board, friction apparatus complete set with weight box, galvanometer, parallelogram apparatus, key one way, jockey pencil type, two-way key, laclanche cell, meter bridge, multimeter digital, multimeter manual, magnetic compass, optical bench 1 meter long, prism indian glass, potentlometer, plier, cutter, screwdriver, scissor, resistance box, dry cell 10g chargeable, dry cell charger, helical spring apparatus with weights, rheostat, resistance coil different range 1-5 ohms, resonance appratus, spherometer, screw gauge, wooden scale 1-50cm, 1-100cm, stopwatch, sonometer, sprit level, thermometer, tuning fork 250hz, 480hz and 512hz withpad, vernier calliper, voltmeter different range, beakers, connecting wires, charts for display blovisuals, portraits as pe choice, concave mirror, convex mirror, convex lens, concave lens, wedge knife edge for sonometer, glass slab, pendulum box, cork rubber 1.5 inches, hanger weights 500 gm, insulated copper wire, meter tape 1-100 meter, soldering iron, spring balance 0-250 gm, u-shaped magnet, copper calorimeter, epidiascope, newton disc, telescope, camera, barometer tube, lactometer, stove oil, electric bell, proof plane, binoculars, soldering rods, pn junction diod set up, desktop set, balance physical, boyle law apparatus, portnis barometer, metallic cylinders, metal sphere, sg bottles, grave sand apparatus, young modulus, spectrometer, hydrometer, sprit level, potentiometer, silk and cat skin pieces, tuning fork, ammonium chloride, all pins 1.5, copper sulphate, drawing pins, thread rolls


Agency / Dept : department of education
Tender Value : 2700000
Due Date : Jun 27, 2026
T18 Ref No : 15792962
live Tender
Source : GEM Tenders
live Tender

tender for viscosity apparatus , youngs modulus , vernier callipers ime type , metallic sphere with hook , zener diode characteristics apparatus , pn junction diode chartersics apparatus , transistor characterstics apparatus pnp and npn , study of logic gate apparatus , friction board apparatus , thermometer 220 f , fraction weight box , plier taparia , screw driver set multipurpose , transformer step up and step down , led 2 watt , inclined plane , milli ammeter , milli voltmeter , ohms law apparatus , retort stand with clamp and bose head , helical sprinf slinky , split cork , travelling microscope , spirit level small , overflow cane , one way key , two way key , four way key , jockey , constantan wire , magnesium wire , watch glass 3 inch , watch glass 2 inch , hanger with weight 50 gm , newton colour disc , spirit lamp , tornedo working model , archmedies principle working model , hand generator working model , solenoid engine working model , electric mlotor working model , magnetic induction working model , domestic circuit parallel working model , domestic circuit series working model , battery eliminator 2 amp , magnetic compass medium size , wire cutter stripper cutter , dry cell charger , rehostat 50 ohm , rehostat 100 ohm , telescope , battery 6 volt , 9 volt dry cell , battery 12 volt , galvanometer , voltmeter , ammeter , dc copper connection wire roll insulated , nicrome wire , simple torch , laser torch red , laser torch green , laboratory stop watch 60 sec timer , white screen for image formation , plane mirror mounted on wooden block 10 x 15 cm , compass magnet small , iron filling , thread roll , geomerical instrument box , paper pin box , thumb pin box , lens cleaner fluid , multimeter digital , ebonite rod , glass rod 20 to 25 cm , test tube , test tube stand , solar system model , soldering iron , solder flux , soder wire resin 100gm , paper tape , plain stickers or label pkt , electric apparatus chart , prism refraction chart , eye defect and correction chart , inertia of 3d body , reflection of convex mirror on different position , reflection of concave mirror on different position , human eye chart , symbols of components used in circuit diagram , flaming left and right hand rule , sound wave refraction and compression , carbon resistance band reading chart , dry cell part chart , solar system chart , albert einstein portrait , prafulla chandra roy portrait , chandrasekhara venkata raman portrait , homi jehangir bhabha portrait , jagadish chandra bose portrait , dr apj abdul kalam portrait , sir issac newton portrait , ammonium chloride 500 gm chemical , copper sulphate 500 gm chemical , zinc sulphate 500 gm chemical , zinc rod , spirit solution for spirit lamp 1 ltr , first aid kit , sitting stools ,, procurement of items for physics lab, equipment or item for physics lab, rexine chart for physics lab, portraits of scientist for physics lab, chemical for physics lab, personal safety or storage item for physics lab


Tender Value : 0
Due Date : Jun 29, 2026
T18 Ref No : 15604235
Location : indore , madhya pradesh
Source : GEM Tenders

Tender Value : 0
Due Date : Jun 22, 2026
T18 Ref No : 15832910
Location : bareilly , uttar pradesh
Source : GEM Tenders

tender for physics and chemistry and biology science lab equipment as per enclose list - beaker , chart stand, conical flask, digital balance, dropping bottle, forceps, funnel, heater, hot plate, human skeleton , leaf clamp apparatus, measuring cylinder 50ml 100ml 250ml, micro viewers, microscope compound,microscope dissecting, morter and pestle, petri dish, pipette graduated 10ml, reagent bottle, skeleton joints , slide box, test tube holders, test tube stand, watch glass, water bath, wash bottle, pipette stand, all pins, burette 50ml, burette 50 ml, perforated beaker, capillary tube, test tube holders, tripod stand, thermometer, trough, wire gauge, burette stand, blade for section cutting, laboratory coat, scissors 4, scissors 6, scalpel, charts controlled pollination, and pedigree , charts roundworm, earthworm and tapeworm , charts pigeon, rat scoliosis, starfish frog and lizard camel and cockroach , charts mendels inheritance and the life cycle of the mosquito , charts racemose inflorescence cymose inflorescence , charts modifications of roots and stem , charts posters portraits of scientists , models claws and beaks forelimbs modifications brain ear and eye , models human torso model and human skeleton , models root nodules of leguminous plants , models cuscuta on host, lichens homologous and analogous organs , slide permanent asexual reproduction plant tissues animal tissues , slide permanent stages of mitosis meiosis t s of the testis t s of ovaries, slide permanent pollen tube germination t s blastula, slide permanent disease causing agents bread mould amoeba hydra, specimens only plant specimens which are in the syllabus are, specimens aquatic plants xerophytic plants monocot plants, specimens dicot plants moss liverworts fern, specimens stem root and leaf modifications, specimens plant diseases mushroom, charts ascaris entamoeba plasmodium any fungus causing ringworm, charts bacteria oscillatoria spirogyra rhizopus mushroom, charts yeast liverwort moss fern pine one monocotyledonous plant, charts one dicotyledonous plant and one lichen amoeba, charts hydra liver fluke ascaris leech earthworm prawn, charts silkworm honey bbee snail starfish shark, charts rohu frog lizard pigeon and rabbit, acetic acid, acetone, alcohol, aluminum sulphate, benedicts solution, muslin cloth, brushes, matchbox, ammonium solution, acetocarmine powder, cavity block, cavity slide, cellotape paper tape, chromatography paper, cobalt chloride, cork, cotton roll, dettol, dropper, dusters, filter paper, formaldehyde, glycerine, grease, boric acid, monocot stem, ethanol, fehling solution a, fehling solution b, glucose, lens cleaning solution, lens cleaning paper, magnesium sulphate, onion root tips, plain stickers, robert solution, sodium chloride, sodium hypobromide, hydrochloric acid, detergent, iodine, methylene blue, micro cover slip, micro glass slides, million s reagent, needle, nitric acid, petroleum ether, potassium nitrate, safranin solution, bile salts, soap, starch, starch iodide paper, sucrose, test tube boiling, test tube ordinary, test tube graduated, aluminum foil, barium chloride, dicot stem, urea, seeds pulses, ph paper, balance chemical, blow pipe iron, burette stand wooden, test tube brush, cork borer iron, cork presser iron, crucible tongs iron, charcoal slab borer iron, crucible silica, deflagrating spoon iron, distilation apparatus iron, drying cones iron, funnel stand or filter stand wooden, pestle and mortar, pinch cock iron, retort stand with ring and clamp, round file, sand bath, spirit lamp barss, stoves, test tube stand wooden, test tube holder iron, triangular stand iron, tripod stand iron, trough tin, wire gauze iron, weight boxes wooden, triangular clay pipes iron wire covered with clay, beaker, burettle, china dish, conical flasks, flasks r b and f b , funnel, gas jar or cylinder, glazed tile, measuring flasks, pipette, retort, thistle funnel, kipp s apparatus, watch glass, ammonium carbonate, ammonium chloride, ammonium sulfate, ammonium bromide, aluminum sulfate, iron sticks, potassium nitrite, ammonium oxalate, sodium thiosulphate, zinc sulfate, cobalt nitrate, sodium hydroxide, copper sulfate, potassium nitrate, oxalic acid, magnesium sulfate, magnesium chloride, ammonium phosphate, sodium chloride, potassium ferrocyanide k4fecn 6, ferrous sulfate, sodium bromide, ammonium ferrous sulfate, potassium dichromate, barium chloride, strontium nitrate, sodium sulfide na2s, potassium chromate, lead acetate, sodium sulfate, potassium iodide, lead nitrate, cedric ammonium nitrate, 2 and 4 dnp, universal indicator, ammonia solution nh4oh, phenol, aniline, bromine water, acetaldehyde, acetic acid, fehling solution a to b, acetone, carbon disulfide, phenolphthalein, nessler s reagent, ammoniumm olybdate, nickel carbonate, nickel sulfate, manganese chloride, calcium chloride, sodium bisulphate., cobalt acetate, chloroform, hydro chloric acid hcl, sulphuric acid h2so4, nitric acid hno3, ethanol, test tube 50 and 125mm, test tube holder thick brass, dropper glass 150mm, funnel 2, pipette 10ml bulb tube, conical flask 250ml, volume tric flask 100ml, filter paper , glass rod thick, plain white labels 2 and 1, sodium sulfite na2so3, picric acid, borax, cobalt glass, aluminum metal, spatula, bunsen burner, droppers, burettes 50ml, wire gauge, watch glass, spatula, tripod stand, burette stand, laboratory thermometer , ammeters different range, battery eliminator, daniell cell, drawing board, friction apparatus complete set with weight box, galvanometer, parallelogram apparatus, key one way, jockey pencil type, two way key, laclanche cell, meter bridge, multimeter digital, multimeter manual, magnetic compass, optical bench 1 meter long, prism indian glass, potentiometer, plier, cutter, screwdriver, scissor, resistance box 0.1 to 10 ohm, resistance box 1 to 10 ohms, resistance box 1 to 100 ohms, resistance box 1 to 1000 ohms, resistance box 1 to 100000 ohms, dry cell 10g chargeable, dry cell charger, helical spring apparatus with weights, rheostat, resistance coil different range 1 to 5 ohms, resonance apparatus, spherometer, screw gauge, wooden scale 1 to 50 cm and 1 to 100 cm, stopwatch, sonometer, sprit level, thermometer, tuning fork 250 hz and 480 hz and 512 hz withpad, vernier calliper, voltmeter different range, beakers, connecting wires, charts for display bio visuals, portraits as per choice, concave mirror, convex mirror, convex lens, concave lens, wedge knife edge for sonometer , glass slab, pendulum box, cork rubber 1.5 inches, hanger weights 500 gm, insulated copper wire, meter tape 1 to 100 meter, soldering iron, spring balance 0 to 250 gm, u shaped magnet, copper calorimeter, epidiascope, newton s disc, telescope, camera, barometer tube, lactometer, stove oil, electric bell, proof plane, binoculars, soldering rods, p n junction diode set up, laptop or desktop set as per enclosed specification, balance physical , boyle s law apparatus, fortnis barometer, metallic cylinders, metal sphere, sg bottles, grave sand apparatus, young s modulus, spectrometer, hydrometer, spirit level, potentiometer, silk and cat skin pieces, gold leaf electroscope, all pins 1.5 , drawing pins, thread rolls


Tender Value : 5600000
Due Date : Jan 25, 2025
T18 Ref No : 15635363
Location : jhunjhunu , rajasthan
Source : GEM Tenders

tender for simple pendulum stand , spherical bob packet , hookes law slotted weights , stop clock mechanical , voltmeter analog , ammeter analog , moving coil galvanometer analog , metre bridge , resistance box 1ohm to 500 ohm , resistance box 1ohm to 10000 ohm , rheostat , battery eliminator , one way key , connecting copper wire , bread board connecting wire , wire cutter , standard resistors 5 ohm , standard resistors 10 ohm , standard resistors 20 ohm , constantan wire roll , milliammeter 0 to 100 ma , microammeter 0 to 500 microammeter , convex lens , concave mirror , wooden drawing board , laser torch red green , glass prism , glass slab , p-n junction diode kit , breadboard , resistors pn diode led capacitor transistor ic , drawing notebooks , oil pastel crayon color , cartridge sheet, supply of physics lab items and drawing books, simple pendulam stand, steel or brass pendulum bob with hook of 18 mm and 25 mm, 5x10 g slotted weights ideal for physics and lab experiments requiring precise mass measurement and 5x20g slotted weights ideal for physics and lab experiments requiring precise mass measurement 10 pcs, mechanical stop clock material - metal start -stop lever on left and zero reset lever on right two sweep hands one indicating seconds, the other recording minutes, range 0 to 5v, range 0 to 5a, analog 30 to 0 to 30 20ua div, one meter long provided with four gaps two gaps plywood base and sumica top graduated scale constantan wire is stretched on top meter scale brass c.p. strip end gaps can be closed by removable brass strips and brass terminals are provided to reduce resistance, resistance box 1 to 500 ohms brass plug type constantan coil 9mm thick brass block, total resistance 21110 manganian coil 9 by 16 inch thick brass blocks size 6x3x3 cm material pvc, precise resistance control smooth sliding contact design allows accurate adjustment of resistance for better control of current in experiments 100 ohm capacity ideal resistance range for circuit testing electrical demonstrations and physics lab applications sturdy metal foot base durable construction with metal support ensures stability and safe operation during use, product enclosed battery eliminator 2to12v 3 amp battery eliminator is portable and sturdily built safe and reliable designed comprising a heavy duty transformer wound with copper wire with high lamination to avoid losses selector switch and bridge rectifiers consists of full wave silicon diode bridge rectifier with jewel light and safety fuse, strong base of pvc with rust resistance terminals and one plug key for making or breaking the circuit plug key completes the circuit for current to flow and when it is removed circuit breaks it is a electrical component which is used as a switch the small brass metallic key is provided along with rectangular base to flow or break the current., dcc copper connecting wire are coated with cotton widely used in science laboratory for conducting experiments highly durable pack consists of 500 gm x 01 roll, electronic spices single core breadboard jumper hookup wire pure copper breadboard wire 22 gauge wire hookup wire 2 meters 5color total 10 meters pack, stainless steel mini diagonal nipper wire cutter plier 4 inch multipurpose deburring flush plastic coated for cable jewellery making and repair electronic watchmaking, standard resistor of 5 ohm for metre bridge experiement made up of wooden base or bakelite, standard resistor of 10 ohm for metre bridge experiement made up of wooden base or bakelite, standard resistor of 20 ohm for metre bridge experiement made up of wooden base or bakelite, constantan wire roll for laboratory, analog milliammeter, analog microammeter, focal length 20 cm 3 inch aperture, focal length 20 cm 3 inch aperture, drawing board for optics experiment in physics lab, rechargeable green laser pointer light with battery & charger long range laser torch, glass prism 50 x50 mm equilateral prism optical triangular for physics teaching light spectrum & practical experiments, glass slab, forward and rverse characteristics two round meters voltmeter and ammeter consist of micrometer and miliammeter are used for current and voltage measurement knobs are provided for adjustment kit has inbuilt ic regulated power supply to better performance in a dc voltage, 840 tie points 128 groups of 5 connected terminals 8 bus of 25 connected terminals reusable for fast build a prototype of an electronic circuit will accept transistors diodes leds resistors capacitors and virtually all types of components no soldering required fit for jumper wire of 0.8mm diameter standard 2.54mm hole spacing, comprehensive kit includes 250 plus high quality electronics components covering resistors capacitors leds diodes and transistors for all your circuit needs resistors and capacitors features 100 pcs of 1by4 w resistors 100 to 100k 50 ceramic caps and 25 electrolytic caps across multiple value leds and diodes comes with 30 pcs of 5mm leds in 5 colours red green yellow blue white and 25 diodes including 1n4007 1n4148 1n5408 and zener diodes transistors included contains 20 transistors across 4 types bc547 bc557 configurations, a4 size 50 pages 70 gsm spiral binding, set of 12 shades, a3 size 130gsm


Agency / Dept : sainik school sangathan
Tender Value : 0
Due Date : Jun 13, 2026
T18 Ref No : 15170809
Source : GEM Tenders

tender for computer table , tables 4 3 ft , office desk , rotating office chair , red cushion chairs , book shelves , computer with lib mgmt software , inkjet colour printer , broadband connection , wifi router , ups online , lib books , led tube light 20 w , led bulb 9 w , table lamp with holder for bulb 9 w , electric switches , switch boards , mcb 63 ampere , 200 mtr copper wiring 1 5 sq mm , door curtains size 6ft 3ft , window curtains size 5 5ft 6ft , ro filter 8 ltr , paint 20 ltr light blue colour , distemper 20 ltr , floor tiling 11ft 55 ft tile size 16 16 , cement bag 25 kgs , meter scale , vernier scale , screw gauge , spring balance , convex lenses , concave lenses , optical bench , lab mirrors , ammeter , voltmeter , rheostat , battery , stopwatch , thermometer , test tubes , potentiometer boards , beakers , conical flasks , burettes , bunsen burners , test tube holder , litmus paper book , ph paper book , h so , hcl , na cl , na oh, lib and science lab for govt sec school rama camp, computer table, tables 4 3 ft, office desk, rotating office chair, red cushion chairs, book shelves, computer with lib mgmt software, inkjet colour printer, broadband connection, wifi router, ups online, lib books, led tube light 20 w, led bulb 9 w, table lamp with holder for bulb 9 w, electric switches, switch boards, mcb 63 ampere, 200 mtr copper wiring 1 5 sq mm, door curtains size 6ft 3ft, window curtains size 5 5ft 6ft, ro filter 8 ltr, paint 20 ltr light blue colour, distemper 20 ltr, floor tiling 11ft 55 ft tile size 16 16, cement bag 25 kgs, meter scale, vernier scale, screw gauge, spring balance, convex lenses, concave lenses, optical bench, lab mirrors, ammeter, voltmeter, rheostat, battery, stopwatch, thermometer, test tubes, potentiometer boards, beakers, conical flasks, burettes, bunsen burners, test tube holder, litmus paper book, ph paper book, h so, hcl, na cl, na oh


Agency / Dept : indian army
Tender Value : 1990000
Due Date : May 08, 2026
T18 Ref No : 15485983
Location : bhabua , bihar
Source : GEM Tenders

tender for asbsusdus pad with frame , beaker glass 250 ml, borosilicate glass , beaker glass 500 ml,borosilicate glass , behieve shelf procillian , beurett 50ml. with teflon stop corck,borosilicate glass , burner with lock , china dish basin 2 2.5 3 , conical flask glass 100ml borosilicate glass , conical flask glass 250ml borosilicate glass , conical flask glass 500ml borosilicate glass , conical funnel glass 3 borosilicate glass , corck borrer set three metalic borosilicate glass , cork pressure metallic ss8 , crushible with lid procillian , deflection spoon copper , dessicator , dropper 6 , filter paper 11cm 1pkt , fractional weight box , gas jar 62 lid , glass stirrer 4 , glass tube borosilicate glass , test tube hard glass glass , iron ring with bose head , iron stand with clamp bose head , kipps appratus 1000ml polylab plastic , magnet , measuring cylinder glass100 ml borosilicate glass , measuring cylinder glass 50 ml borosilicate glass , measuring flask 100 ml borosilicate glass , measuring flaskglass 250ml volumetric borosilicate glass , motel pestal , ph paper best quality , pippete , reagent bottle 250 ml glass borosilicate glass , reagent bottle 500 ml glass borosilicte glass , reagent bottle100 borosilicate glass , retort copper best quality , round bottom flask glass 250 ml borosilicate glass , round bottom flask glass 500 ml borosilicate glass , round file best quality , rubber tube best quality , ruber corck no. 2,3,4,5 , sand bath metallic4 , spatula stainless steel , spirit lamp s.s. , test tube borosilicate glass , test tube brush , test tube holder , test tube stand fibre , thermometer fc best quality , thisstle funnel borosilicate glass , thraugh best quality , tongue with crushible stainless steel , traingular file best quality , tripaod stand 66best quality , wash bottle polythene500 ml polylab make , watter bath copper 4 , wire gauge 66 , woolf bottle glass 250 ml , ac to dc eleminator1.5 volt to 12 volt , ammetere with stand ranges , bar 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Tender Value : 0
Due Date : Jun 06, 2026
Published By

Every year, central and state government departments release thousands of high-value contracts specifically dedicated to concave lens. Whether it involves bulk material supply, executing specialized operational services, or end-to-end turnkey project execution, the demand for capable vendors in the concave lens sector is massive.

At Tender18, we help businesses cut through the noise and exclusively target the exact work categories they specialize in. Instead of browsing through generic procurement sites, our platform isolates high-potential opportunities that match your specific industry capabilities.

Work Dynamics in the concave lens Sector

Government requirements for this specific vertical generally fall into distinct procurement patterns:

  • Product & Material Supply: Tenders focused strictly on sourcing, testing, and delivering high-quality items that meet the exact technical specifications of the buyer.
  • Service Level Agreements (SLAs): Long-term hiring of expert agencies for routine maintenance, manpower deployment, or continuous operational management.
  • Execution & Turnkey Projects: Comprehensive contracts where the bidder is responsible for everything from raw material procurement to final site installation and testing.

By focusing purely on your core strength in concave lens, you can build a highly profitable and stable pipeline of government clients.

Stop wasting time filtering through irrelevant notices. Our concave lens Tender Information Service is engineered for precision. We track exact product codes, service names, and specialized work terms across all government portals nationwide. When a buyer publishes a requirement that matches your specific business profile, our system alerts you instantly.

Deep Technical Insights & Documentation For concave lens Tenders

Bidding for specific works requires studying strict technical parameters. We provide immediate access to the core documents you need to evaluate the project:

  • Detailed Specifications & Drawings: Download the exact engineering guidelines, material testing standards, and quality benchmarks demanded by the buyer for concave lens.
  • Financial BOQ Spreadsheets: Access the official blank pricing formats where you need to input your unit rates, tax configurations, and total bid value.
  • Real-Time Technical Amendments: If the buying department changes the product specifications, alters the service scope, or shifts the delivery timeline, we instantly update the parent file so you are never caught off-guard.

Winning a contract for concave lens depends entirely on how perfectly your technical capabilities match the buyer’s demands. Even if you have the best product or service, a poorly formatted document or a missing compliance certificate will lead to instant technical rejection. Tender18’s Tender Bidding Service eliminates this risk by taking complete ownership of your digital submission.

Flawless Compliance & Portal Execution For concave lens Tenders

Under this service, Tender18 assigns a Dedicated Experienced Technical Person to your profile. This expert handles the heavy lifting of the entire bidding cycle:

  • Capability Mapping: We thoroughly cross-check your past completion certificates, ISO standard proofs, and financial turnover against the strict eligibility criteria required for concave lens bids.
  • Secure System Integration: Our technical desk seamlessly links your Class III Digital Signature Certificate (DSC) with the required e-procurement servers to securely encrypt your technical and financial envelopes.
  • Error-Free Financial Uploads: We audit your quoted BOQ pricing sheets for any formula or formatting errors before the final upload, ensuring your bid is successfully locked before the portal's closing hours.

Government buyers are aggressively using the Government e-Marketplace (GeM) for the direct procurement of concave lens. If your business profile is not accurately mapped on this portal, you remain practically invisible to these purchasing officers. Recognized as a trusted and expert GeM consultant, Tender18 offers specialized support to build, optimize, and maintain a highly visible vendor account for your business.

With an industry-leading support success ratio of over 95%, we handle the complex marketplace compliance so you can focus entirely on executing your orders

Expert Profile Management & Catalogue

Our dedicated consultants ensure your GeM presence is structurally perfect:

  • Precise Catalogue Listing: We upload and categorize your specific offerings under the exact search terms and parameters used by government buyers looking for concave lens, ensuring maximum search visibility.
  • OEM Dashboard & Assessment: For original manufacturers and creators, we guide you through the mandatory Quality Council of India (QCI) vendor assessments to successfully unlock your official OEM panel.
  • Profile Compliance & Caution Money: We manage your statutory documentation, brand approvals, and caution money limits to keep your account immune from technical suspensions.

Strategic Live Bid Participation

Beyond setup, we actively drive your market participation. Our team expertly handles the digital paperwork and rate configurations for GeM Custom Bids and Reverse Auctions (RA) related to concave lens, maximizing your chances of securing L1 status.

1.

How do I find government contracts exclusively matching my work in concave lens?

The easiest way is through the Tender18 platform. Instead of searching department by department, our system uses advanced keyword matching to gather all live supply, service, and execution tenders related directly to your core business in one place.

2.

Do I need specific testing or quality certificates to apply for these contracts?

It heavily depends on the nature of the work. For supply contracts, buyers often ask for ISO certifications, BIS marks, or specific lab testing reports. For service contracts, they may ask for labor licenses or past performance certificates (work orders).

3.

What is a BOQ and why is it important for my bid?

The Bill of Quantities (BOQ) is the official financial Excel sheet where you enter your competitive prices. Any mistake in this file—like adding extra rows, changing formulas, or saving it in the wrong format—will cause the portal server to reject your entire bid.

4.

Are samples required to be submitted physically before the digital bid opens?

For many product-based concave lens tenders, buying departments do ask bidders to submit physical samples to their office before the digital technical evaluation date. This requirement is always clearly mentioned in the official NIT document.

5.

How does the Dedicated Tender Expert from Tender18 help me?

Our assigned expert manages your total portal compliance. They extract the hidden rules from long tender PDFs, create a precise document checklist for your team, map your digital signature, and securely upload your technical and financial files onto the government servers.

6.

What is the role of a Digital Signature Certificate (DSC)?

A Class III DSC is a secure USB device that contains your digital identity. You cannot upload a bid without it. It is used to securely encrypt and lock your sensitive price data and technical documents so no one can view them before the official opening date.

7.

As an MSME, can I get financial benefits when bidding for concave lens?

Yes, the government strongly supports MSMEs. By uploading a valid Udyam Registration Certificate in the technical envelope, small businesses are frequently exempted from paying the initial Tender Document Fee and the Earnest Money Deposit (EMD).

8.

Why should I list my services or products on GeM for this category?

GeM is now the primary digital marketplace for all government agencies. If you are properly cataloged for concave lens, officers can view your profile and generate direct purchase orders or invite you to participate in exclusive Custom Bids.

9.

What makes Tender18 a reliable GeM support partner?

As a highly trusted and expert GeM consultant, Tender18 holds a proven support success ratio of over 95%. From flawless profile creation and complex catalogue mapping to OEM panel approvals and live Reverse Auction (RA) support, we handle it all seamlessly.

10.

What does "L1" mean in these government contracts?

"L1" stands for "Lowest Bidder 1". In government procurement, after all technical envelopes are approved, the financial sheets (BOQs) are opened. The bidder who has quoted the lowest compliant price for concave lens is declared L1 and is generally awarded the contract