Pradhan Mantri Mudra Yojana (PMMY) is a flagship scheme of Government of India to “fund the unfunded” by bringing such enterprises to the formal financial system and extending affordable credit to them. It enables a small borrower to borrow from all Public Sector Banks such as PSU Banks, Regional Rural Banks and Cooperative Banks, Private Sector Banks, Foreign Banks, Micro Finance Institutions (MFI) and Non Banking Finance Companies (NBFC) for loans upto Rs 10 lakhs for non-farm income generating activities. The scheme was launched on 8th April, 2015 by the Hon'ble Prime Minister. In India many things revolve around mere perceptions, while getting into detail it often paint a different picture. It is a common misperception people have that large industries create more employment, though the truth is that “in India only 1.25 crore people find employment in large industries, whereas small enterprises employed 12 crore people”. In India, small businesses play an important role by providing employment to a large number of people. It is the second largest sector engaging uneducated and unskilled people after agriculture. Further, millions of low income earning group person aspire to set up small businesses but are unable to start, mostly due to credit limitations. Since banks do not find them eligible for credit loan. After identifying the importance of self employment people and small business units, government of India launched MUDRA Yojana to address the financial and other constraints. This paper is an attempt to know about the MUDRA Yojana and its key objectives. The paper highlights the role and importance of MUDRA bank towards small business units, it also review the Mudra yojna for the year of 2015-2019 in terms of many aspects.