Udyam registration is a government registration that provides MSMEs with a recognition certificate and unique registration number. It replaces the previous Udyog Aadhaar registration system. The registration process takes 4-5 days normally but can sometimes take over 15 days. Having a PAN number and GST registration is now mandatory for Udyam registration. Registrants can verify their Udyam registration number online by entering the 19-digit registration number and a verification code.