Udyog Aadhar was replaced by Udyam in 2020. Government of India has asked all MSMEs with UAM numbers to migrate to Udyam registration.
Only by a single person with a single Aadhaar card. She/he can add multiple business activities in the same registration form. However, under the UAM facility, a single person can register for Udyog Aadhaar several times under different corporate names.
The Udyam registration portal asks businesses to fill in a longer application form requiring details of income tax and GST. Udyog Aadhaar on the other hand features a one-page form.
Udyog Aadhaar application only requires the applicant’s Aadhaar card and PAN number, and it provides instant self-certification as per old MSME criteria. In contrast, Udyam Registration only requires the applicant’s Aadhaar card and provides verified certification per new MSME criteria.