List of e Tender Portals: 

1 Bharat Petroleum Corporation Limited https://bpcleproc.in Class 2/class 3 signing encryption
2 Bharat Heavy Electricals Limited https://bhel.abcprocure.com/EPROC/ Class3 signing with encryption
3 Employees State Insurance Corporation https://esictenders.eproc.in Class 3 signing with encryption
4 Balmer Lawrie https://balmerlawrie.eproc.in Class 2/3 signing with encryption
5 National Projects Construction Corporation Limited https://npcc.eproc.in Class 3 signing with encryption
6 Rites Tender https://rites.eproc.in Class 3 signing with encryption
7 Indian Railway Eprocurement Service https://www.ireps.gov.in Classs 3 signing
8 Bharat Sanchar Nigam Limited www.tenderwizard.com/BSNL Class 3 signing
9 National Institute Of Science Education & Research (NISER) https://www.tenderwizard.com/NISER Class 3 signing
10 Institute Of Hotel Management Catering Technology & Applied https://www.tenderwizard.com/CTANIHM Class 3 signing
11 Hindustan Aeronautics Limited https://eproc.hal-india.com/HAL/ Class 3 signing
12 Life Insurance Corporation Of India https://www.tenderwizard.com/LIC Class 3 signing
13 Central Public Works Department https://www.tenderwizard.com/CPWD Class 3 signing
14 State Bank Of India https://sbi.abcprocure.com/EPROC/ Class 3 signing with encryption
15 Power Grid Corporation Limited https://pgcileps.buyjunction.in/PGCIL Class 3 signing with encryption
16 Ordnance Factory Board https://ofbeproc.gov.in/ofbeproc Class 3 signing
17 Mstc E Tender https://www.mstcecommerce.com/eprochome Class 2/3 signing
18 Mstc Ecommerce For Eauction https://www.mstcecommerce.com Class 3 signing
19 Indian Space Research Organisation https://eprocure.isro.gov.in Class 3 signing with encryption
20 Damodar Valley Corporation https://etender.dvc.gov.in Class 3 signing with encryption
21 Department Of Atomic Energy https://etenders.dpsdae.gov.in Class 2/3 signing with encryption
22 North Eastern Council Secretariat, Shillong https://nec.euniwizard.com/ Class 3 signing with encryption
23 Garden Reach Shipbuilders & Engineers http://eprocuregrse.co.in Class 2/3 signing
24 Central Public Procurement Portal https://eprocure.gov.in Class 2/class 3 signing
25 West Bengal E Tender https://wbtenders.gov.in Class 2/3 signing
26 Coal India Etender https://coalindiatenders.gov.in Class 2/3 signing
27 Central Public Procurement Portal https://etenders.gov.in Class 3 signing
28 Ntpc Limited https://eprocurentpc.nic.in Class 2/3 signing
29 Indian Oil Corporation Limited https://iocletenders.nic.in Class 2/3 signing
30 Bharat Earth Movers Limited http://www.bemlindia.com/eprocurement Class 3 signing with encryption
31 Bhilai Steel Plant Sail https://eproc.sail-bhilaisteel.com/irj/portal Class 3 signing with encryption
32 Oil & Natural Gas https://etender.ongc.co.in/irj/portal Class 2/class 3 signing
33 Oil India Limited https://etender.srm.oilindia.in Class 3 signing with encryption
34 Gas Authority Of India Limited https://etender.gail.co.in Class 3 signing with encryption
35 NTPC-SAIL Power Company Limited (A Joint Venture Of NTPC & SAIL ) http://srmportal.nspclsrijan.co.in:50000/irj/portal Class 3 signing
36 Hindustan Petroleum Corporation Limited https://etender.hpcl.co.in Class 2/3 signing with encryption
37 National Aluminium Company Limited https://epci.nalcoindia.co.in/irj/portal Class 3 signing with encryption
38 Andhra Pradesh Tender https://tender.apeprocurement.gov.in Class 3 signing with encryption
39 Talangana Tenders http://eprocurement.telangana.gov.in Class 3 signing with encryption
40 Commonwealth Handling Equipment Pool https://eproc.cgstate.gov.in/CHEPS Class 3 signing with encryption
41 Indian Farmers Fertiliser Co-Operative Limited https://www.iffcoindia.com Class 3 signing with encryption
42 Maharashtra State Power Generation Co. Ltd. http://sets.mahagenco.in Class 3 signing with encryption
43 Neyveli Lignite Corporation Limited http://eproc.nlcindia.com Class 3 signing with encryption
44 Bihar Eprocurement https://www.eproc.bihar.gov.in//BELTRON Class 2/class 3 signing
45 Sikkim Tender https://sikkimtender.gov.in Class 2/class 3 signing
46 Tripura Tender https://tripuratenders.gov.in Class 2/class 3 signing
47 Odisha Tender https://tendersodisha.gov.in Class 2/class 3 signing
48 Uttar Pradesh Tender https://etender.up.nic.in Class 2/class 3 signing
49 Bsnl Kolkata Tender https://www.tenderwizard.com/BSNLKOL Class 3 signing
50 Government Of Madhya Pradesh https://www.mpeproc.gov.in/ Class 3 signing
51 Brahmaputra Valley Fertilizer Corporation Limited https://bvfcl.etenders.in Class 3 signing with encryption
52 Punjab National Bank https://pnbindia.biz/login Class 3 signing with encryption
53 Bharat Electronics Limited Eprocurement Portal https://hpcrmp.iscodom.com/irj/portal Class 3 signing with encryption
54 Bharat Electronics Limited Eprocurement Portal http://eprocurebel.co.in Class 2/class 3 signing
55 Telecommunications Consultants India Limited https://www.tcil-india-electronictender.com Class 3 signing
56 National Buildings Construction Corporation Limited https://www.tenderwizard.com/NBCC Class 3 signing
57 Assam Tender https://assamtenders.gov.in Class 2/class 3 signing
58 Government Of Karnataka Tender https://eproc.karnataka.gov.in/eprocurement/login.seam Class 3 signing with encryption
59 Nuclear Power Corporation Of India https://npcil.etenders.in Class 3 signing with encryption
60 Vizag Steel Tender https://srm.vizagsteel.com Signature not required
61 Sail Bokaro Tender https://eproc.bokarosteel.sailbsl.in/irj/portal Signature not required
62 Tamilnadu Newsprint And Paper Limited https://eps.buyjunction.in/QEPS/security/getTNPLSignInAction.do Signature not required
63 Mahajenco (Maharashtra State Power Generation Co. Ltd. http://sets.mahagenco.in Class 2/class 3 signing with encryption
64 Sail Durgapur Steel Plant https://srm.saildsp.co.in/irj/portal Signature not required