City Union Bank Limited (CUB) is an Indian bank headquartered in Kumbakonam, Tamil Nadu. The bank was initially named Kumbakonam Bank Limited, and was incorporated on 31 October 1904. The bank preferred the role of a regional bank in the Thanjavur district of Tamil Nadu. CUB provides a gamut of technological services such as net banking, mobile banking, self-service kiosks, bulk note acceptors, and point of sales. In FY2016 the bank had a market capitalization of ₹12,529.92 crore (US$1.7 billion) and operated 700 branches, and 1762 ATMs.