Digital Signature Certificate for a new registraion

GST Application for registration is filed online or digitally. So the Proprietor or Partner or Director need to sign the application digitally as well.

Government has provided 2 ways to sign application digitally.

EVC: AADHAR Based
DSC based.
AADHAR Based Signing:
Not Available to Companies and LLPs
Mobile No of Proprietor or Partner must be linked to AADHAR.
If Mobile No is mentioned on AADHAR Card then it is linked to a person's mobile no.
At the time of registration OTP is sent to a person's mobile no which is linked to AADHAR on successful validation.
If mobile no. is not mentioned on AADHAR then Proprietor or Partner will be required to complete the registration with the use of DSC.
2. DSC Based Signing:

DSC is compulsory In case of Companies or LLPs.
If AADHAR is not linked to mobile no of Proprietor or Partner then he is also required to get a DSC
CONCLUSION:

If Proprietor's AADHAR is linked to mobile no then he does not need DSC.
If Proprietor's AADHAR is not linked to his mobile no then he needs DSC.