Ministry of Micro, Small & Medium Enterprises (M/o MSME) envision a vibrant. MSME Registration - MSME stands for Micro, Small and Medium Enterprises. National portal for online MSME / SSI / udyog aadhar Registration and obtaining certificate in India. What are MSMEs? MSME stands for Micro, Small and Medium Enterprises. Udyam Registration can be filed online based on self-declaration with no requirement for documents of proof, barring Aadhar, as per the.