The Small Industries Development Bank of India (SIDBI) is a statutory body and the principal financial institution for the promotion, financing, and development of the Micro, Small and Medium Enterprises (MSME) sector in India. It was established under the Small Industries Development Bank of India Act, 1989 and commenced operations on April 2, 1990. SIDBI was created to address the long-standing demand for an apex bank to strengthen the institutional arrangements for the small-scale sector.
SIDBI functions by providing both direct and indirect financial assistance to MSMEs. Its primary mechanism for indirect finance is through refinancing to over 900 Primary Lending Institutions (PLIs), such as commercial banks and State Level Financial Institutions, to augment their resources for lending to the MSME sector. It also employs a "credit plus approach," which includes non-financial support like technology modernization, cluster development, and skill-up initiatives.
The institution is one of the five All India Financial Institutions regulated and supervised by the Reserve Bank of India (RBI). It acts as a nodal agency for the Ministry of MSME and coordinates the functions of other institutions engaged in similar activities. A key related concept is the Micro Small and Medium Enterprises Development Act, 2006, which led to the amendment of the SIDBI Act to align its coverage with the new definition of micro, small, and medium enterprises.
In recent years, SIDBI has seen significant changes, including the Union Cabinet's approval of an equity support of ₹5,000 crore in January 2026 to boost credit flow to MSMEs. Furthermore, between April 1, 2024, and July 29, 2026, SIDBI opened 71 new branches to expand its outreach to major MSME clusters. New initiatives like the SIDBI RRB Co-Lending Portal and SIDBI MachFin Mart were also launched in May 2026.