In addition to DSC the GST Portal also provides authentication using E-Sign and EVC.
Electronic Signature (E-Sign)
Electronic Signature (E-Sign) is an online electronic signature service in India to facilitate an Aadhar older to digitally sign a document.
A One Time Password (OTP) will be sent to mobile phone number that is registered with Aadhar at the time of digitally signing documents at the GST Portal.
Electronic Verification Code (EVC)
The Electronic Verification Code (EVC) authenticates the identity of the user at the GST Portal by generating a OTP. The OTP will be sent to the mobile phone number of the registered mobile phone of Authorized Signatory filled in part A of the Registration Application.
To avail these services, the taxpayer must have a valid Aadhaar Card and valid mobile phone number that is registered in the Aadhar database.
Please wait for at least 180 seconds after generating the OTP.
In case you have still not received the OTP, make sure you are checking the correct mobile phone that is registered in the Aadhar database.