What is RBI?
The Reserve Bank of India, chiefly known as RBI, is India's central bank and regulatory body responsible for regulation of the Indian banking system. It is under the ownership of Ministry of Finance, Government of India. It is responsible for the control, issue and maintaining supply of the Indian rupee. 
It also manages the country's main payment systems and works to promote its economic development. Bharatiya Reserve Bank Note Mudran (BRBNM) is a specialised division of RBI through which it prints and mints Indian currency notes (INR) in four of its currency printing presses located in Nashik (Maharashtra; Western India), Dewas (Madhya Pradesh; Central India), Mysore (Karnataka; Southern India) and Salboni (West Bengal; Eastern India). 
The RBI established the National Payments Corporation of India as one of its specialised division to regulate the payment and settlement systems in India. Deposit Insurance and Credit Guarantee Corporation was established by RBI as one of its specialised division for the purpose of providing insurance of deposits and guaranteeing of credit facilities to all Indian banks.