What Is It
What Is Class 3 Org Combo DSC — Why You Need Sign + Encrypt
A Class 3 Org Combo DSC contains two certificates in one USB token — a Signature certificate to sign documents, and an Encryption certificate to seal e-tender bids. This combination is mandatory on all government e-procurement portals.
Feature
Individual DSC
Org Combo DSC
Sign documents
✅ Yes
✅ Yes
Encrypt e-tender bids
❌ No
✅ Mandatory
GeM / CPPP / IREPS
❌ Bid rejected
✅ Required
WB Tenders portal
❌ Not accepted
✅ Mandatory
💡 Simple rule: If you are submitting any bid on a government e-procurement portal — WB Tenders, GeM, CPPP, IREPS, Coal India — you need Org Combo DSC. An Individual DSC will be rejected.
Certificate Specifications
Certificate ClassClass 3
TypeSign + Encrypt (Combo)
Key Size2048-bit RSA
Validity1 / 2 / 3 Years
TokenProxkey / HYP ePass
Legal BasisIT Act 2000 · CCA Licensed
CAs AvailableeMudhra · Capricorn · VSign
Who Needs It
Who Needs Org Combo DSC in Kolkata?
🏗️
Civil & Construction Contractors
Bidding on CPWD, WB PWD, NHAI, WBHIDCO tenders. All government infrastructure portals require Combo DSC for bid encryption.
CPPP · wbtenders.gov.in · eProcure
🚂
Railway Vendors & Contractors
IREPS mandates Combo DSC for all vendors — Eastern Railway, South Eastern Railway, Metro Railway vendors in Kolkata and WB.
IREPS · Railway GEMS Portal
⛏️
Coal India / ECL / NTPC Suppliers
Vendors supplying to Coal India, Eastern Coalfields, NTPC and BHEL must use Combo DSC on their e-procurement portals.
MSTC · Coal India · NTPC Portal
🛒
GeM Portal Sellers & Bidders
Government e-Marketplace sellers need Combo DSC for bid submission. Mandatory for all government procurement bidding.
GeM · CPPP · NIC Tenders
🏢
Company Directors — MCA ROC
Directors signing MCA forms — DIR-3 KYC, MGT-7, AOC-4, SPICe+ incorporation where company-level Sign + Encrypt is required.
MCA21 · ROC · DIN Portal
👤
Proprietors Bidding in Tenders
Sole proprietors bidding in their own name. Most WB and central portals accept Combo DSC issued to an individual/proprietor.
All tender portals
Portal Coverage
E-Tender Portals Where Org Combo DSC Is Mandatory
🌐
wbtenders.gov.in
WB Government tenders — all departments
Mandatory
🏛️
eProcure / CPPP
Central Public Procurement Portal
Mandatory
🚂
IREPS
Indian Railways e-Procurement System
Mandatory
🛒
GeM Portal
Government e-Marketplace bid submission
Mandatory
⛏️
Coal India / MSTC
ECL, BCCL, CCL vendor portals
Mandatory
⚡
NTPC / BHEL
PSU procurement and vendor registration
Mandatory
🏥
NIC eProcure
Central NIC portal — all departments
Mandatory
🌊
KoPT / Haldia Port
Kolkata & Haldia Port Trust tenders
Mandatory
🏢
MCA21 / ROC
Company SPICe+, DIR-3 KYC, MGT-7
Required
Documents
Documents Required for Org Combo DSC
👤 Individual / Proprietor
- PAN Card (original)
- Aadhaar Card (original)
- Aadhaar-linked mobile for OTP
- Email address
✅ Proprietors can get Combo DSC in their own name. Most WB tender portals accept this for sole proprietorship bidding.
🏢 Company / LLP / Firm
- Authorised signatory's PAN + Aadhaar
- Company Registration Certificate
- Authorisation Letter on company letterhead
- Company email ID
💡 DSC issued in authorised person's name with company designation on the certificate.
Pricing
Org Combo DSC — All Validity Options
Reuse your existing Proxkey and save ₹590.
Validity
Base Price
+GST Total
With Token
Apply
💡 Token reuse: Have a working Proxkey or HYP ePass? We load the DSC onto it free — save ₹590 every time.
FAQ
Org Combo DSC — Frequently Asked Questions
Individual DSC has only a Signature certificate — for Income Tax, GST, EPFO. Org Combo has both Signature AND Encryption. Encryption is mandatory for e-tender bid submission on GeM, CPPP, IREPS, wbtenders.gov.in — bids without encryption are rejected.
Yes. Combo DSC is issued in your name as proprietor. Most WB and central government tender portals accept individual/proprietor Combo DSC for bidding. Documents: PAN + Aadhaar + mobile. 15 minutes at BBD Bagh.
Yes. Walk-in before 7 PM Monday–Saturday. DSC issued in 15 minutes, tested on your portal before you leave. Urgent online: WhatsApp 9051855666 — same-day Uber/Porter dispatch in Kolkata.
2-year: ₹1,500 + GST = ₹1,770. Add Proxkey USB token: ₹590. Total all-inclusive: ₹2,360. Have a working existing token? We reuse it free — pay only ₹1,770.
Yes — wbtenders.gov.in, CPPP, IREPS, GeM, Coal India/MSTC, NTPC, NIC eProcure, Haldia Port and all state government tender portals. We test on your specific portal before you leave our office.
Related
Other DSC Services
Get Org Combo DSC Today — Walk-in or Online
Sign+Encrypt · All tender portals · 15 min at BBD Bagh · ₹1,770 · No hidden charges