How To Apply Enroll Register Capricorn Individual User Signing Digital Signature as a Business Partner. Step 1 : In your partner login there is a DSC Registration Link. Open that and Choose below product - Individual, Sign, 2 Years, I already have a USB Token, Assistance Services not required. and Click on Buy Certificate on right side. Step 2: Fill the name, email id, mobile number, address with pin code, bp code details, Captcha. Send OTP and verify them. Click on Continue