CPPP Vendor Registration & Class 3 DSC Mapping Guide 2026

The Central Public Procurement Portal (CPPP) at eprocure.gov.in is India's primary portal for central government ministries, Central Public Sector Enterprises (CPSEs), defense organizations, and state bodies operating under the GePNIC framework. With over 350,000 registered bidders, participating in CPPP tenders requires an active profile and an authenticated Class 3 Digital Signature Certificate (DSC).

1. Prerequisites for CPPP Vendor Enrollment

Before beginning the online registration process on eprocure.gov.in, ensure you have the following documents and hardware ready:

2. Step-by-Step CPPP Online Bidder Enrollment Process

Step 1: Access the Official Portal

1. Open your web browser and navigate to https://eprocure.gov.in/eprocure/app.
2. Click on the "Online Bidder Enrollment" link located on the right-hand menu panel.

Step 2: Fill Company Details

1. Login ID: Enter a valid corporate email address (e.g., bidding@yourcompany.com). This email will serve as your permanent username.
2. Company Name: Enter your exact business name as listed on your GST/PAN certificate.
3. Registration Number: Enter your Company Identification Number (CIN), LLPIN, or Firm Registration number.
4. Address & Contact Details: Fill in your registered business address, city, state, postal code, and mobile number.

Step 3: Enter Tax & MSME Details

1. Select your company type (Proprietorship, Partnership, Private Limited, Public Limited, or MSME).
2. Input your 10-digit PAN and 15-digit GSTIN.
3. If registered as a Micro or Small Enterprise (MSE), enter your Udyam Registration Number to enable automatic EMD exemption processing.

Step 4: OTP Verification & Password Setup

1. Submit the form to generate One-Time Passwords (OTPs) sent to your registered email and mobile number.
2. Enter the OTPs to verify your identity and set a strong alphanumeric password (minimum 8 characters with special symbols).

3. How to Map Class 3 DSC Token on CPPP

Registration alone does not permit tender bidding. You must map your Class 3 Digital Signature Certificate (DSC) to your CPPP profile before uploading technical or financial bids.

[Insert USB DSC Token] ➔ [Log into eprocure.gov.in] ➔ [Click 'Register DSC'] ➔ [Select Signing Cert] ➔ [Enter Token PIN] ➔ [Mapping Confirmed]

Detailed DSC Mapping Steps:

1. Insert USB Token: Plug your Class 3 DSC USB token (ePass2003, Watchdata, ProxKey) into your computer's USB port. Ensure token driver software is installed.
2. Log into CPPP: Visit https://eprocure.gov.in/eprocure/app and log in with your username and password.
3. Navigate to DSC Registration: On your user dashboard, click on "Click here to register Digital Signature Certificate".
4. Run Java / WebSigner Applet: Allow the browser to run the WebSigner / Java PKI applet. When prompted, trust the certificate publisher.
5. Select Certificate: The portal will display available certificates stored on your USB token. Select your Signing Certificate (ensure certificate validity is active).
6. Enter Token PIN: Input your USB token password/PIN when prompted.
7. Confirmation: Click Submit. A success message reading "Digital Signature Certificate registered successfully" will appear on your dashboard.

4. Troubleshooting Common CPPP Registration & DSC Errors

Error A: "DSC Not Detected / WebSigner Not Initialized"

• Cause: Missing USB token drivers or blocked browser PKI applets.
• Solution: Reinstall your USB token driver software. Add https://eprocure.gov.in to the Exception Site List inside Windows Java Control Panel (Control Panel ➔ Java ➔ Security ➔ Edit Site List).

Error B: "Certificate Belongs to Another User"

• Cause: Attempting to map a DSC that is already linked to another CPPP username or expired profile.
• Solution: Log into your original account to unbind the old certificate, or contact the CPPP Helpdesk (support-eproc@nic.in / 0120-4001002) to request certificate re-mapping.

Error C: "Invalid Login ID or Account Locked"

• Cause: Entering incorrect password 5 times locks the account automatically for safety.
• Solution: Click "Forgot Password / Reset Account" on the login page to receive a password reset link via registered email.

5. Summary & Best Practices

• Always keep your Class 3 Signing + Encryption DSC renewed at least 30 days before expiration.
• Maintain a single authorized email ID for all CPPP tender notifications to prevent missing tender corrigendums.
• Use SahayakAI Procurement OS to automate tender monitoring across CPPP, GeM, and State eProcurement portals in a unified dashboard.