RBL is a scheduled commercial bank, based in the Mumbai region of Maharashtra, India. It was founded in August 1943. The bank has a gross business size of around Rs. 0.64 million Cr. The RBL bank provides banking services categorized into five sectors: Retail Banking, Commercial Banking, Corporate & Institutional Banking, Agri & Development Banking and Financial Markets. Ratnakar Bank was a bank in Maharashtra with two of its branches in Kolhapur and Sangli in August 1943. In the Kolhapur-Sangli belt, it used to serve to the small and medium business merchants. In August 1959, the Bank was recognized as a "Scheduled Commercial Bank" under the Reserve Bank of India Act, 1934. RBL Bank was also known as NH4 Bank since most of its occupation was limited to the cities in the 1,235-km National Highway 4 that connected four of the ten most dense cities in India. In the 2010s, RBL Bank has allegedly raised Rs 4,000 Cr, from investors. In 2011, the Bank raised Rs. 700 Cr, Rs 376 Cr, in 2014 Rs. 328 Cr. and in 2016 Rs.488 Cr. RBL Bank raised Rs 330 Crores from the UK-based development finance institution, CDC Group Plc (CDC), through Basel III compliant Tier II capital, in September 2016. In July 2017, RBL Bank got the board approval to raise Rs 1680 Cr.