The twin cities of Kalyan and Dombivli were joined and converted into the Kalyan-Dombivli municipal corporation in 1982 to improve the administration of the twin townships. The headquarter of this city is situated in Kalyan. Kalyan and Dombivli are both cities in the Thane District of Konkan division in Maharashtra state. The city comprises a majority of Hindu residents who speak mostly in Marathi. The weather in this city follows the exact trends as that of Mumbai and is known to experience the notorious Mumbai rains. The twin city of Kalyan-Dombivli had been under the reigns of the Mughal, the Portuguese as well as the British. The celebrated Maratha heroes, held in high esteem by the residents, were the only valiant defense against these foreign invasions. The city of Kalyan used to be surrounded by a fort wall which was constructed during the Mughal age and further improved by the Maratha rulers. It was called the Durgadi Fort. History claims that a small wooden temple dedicated to Durgadevi was behind the mosque inside this fort wall. However, this historical relic was dismantled by the British and the stones were used to build the piers of Thane and Kalyan. The idol in the temple was also stolen. Only the remnants of the north-west gate of this fort still remain to remind the people of the historic past.
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.