Marketing Analyst
24 Points
Joined February 2017
As per my knowledge, yes the aadhar number is mandatory for E-Sign authorization. Here is a detailed guideline about applying fro GST online enrolment.
Link (https://howtoexportimport.com/Guidelines-to-apply-for-GST-online-enrolment-in-In-4506.asp)
hope this will helps you to solve your requirement.