· On registration, an enterprise (referred to as “Udyam” in the Udyam Registration portal) will be assigned a permanent identity number to be known as “‘Udyam Registration Number”. Udyam Registration, Zero cost for registering Udyam Registration (Official Website for MSME Registration) Ease of Doing Buisness shall be filed online free of cost. Aadhaar number shall be required for Udyam Registration. The Aadhaar number shall be of the proprietor in the case of a proprietorship firm, of the managing partner in the case of a partnership firm and of a … Zero cost for registering Udyog Aadhaar with Zero Fee (Official Website for MSME Registration) Ease of Doing Buisness shall be filed online free of cost.