The two separate towns of Rajpur and Sonarpur in the South 24 Parganas district of the Indian State of West Bengal has been united to form the municipality of Rajpur Sonarpur. This small and emerging city comes under the Kolkata Metropolitan Development Authority or KMDA region. The area was earlier inhabited by the zamindars, who called the area "Rajar Puri," that translates to "Land of the Kings" in the regional language. The city is well connected to the nearby areas and lies in the vicinity of the metro city Kolkata. Rajpur Sonarpur is mostly a residential area and its residents mostly work in the service sector of the KMDA region. The Tripurasundari Temple in Boral area of Rajpur Sonarpur is a famous spot that attracts tourists as well as devotees. Many famous Bengali movies have been shot in and around this city. Rajpur Sonarpur city has a population of around 4 lakh and Bengali is the most commonly used language in the area.
On 31st October 1904, The Kumbakonam Bank Limited as it was then called was incorporated as a limited company. The first MOA was signed by 20 devoted and prominent citizens of Kumbakonam including T.S.Raghavachariar, Sarvashri R. Santhanam Iyer, S.Krishna Iyer, and V.Krishnaswami Iyengar. The First Agent of the Bank was T.S.Raghavachariar. He was succeeded by Shri R. Santhanam Iyer, who was designated as Secretary of the bank under the amended Articles of Association which states that "now onwards the secretary will be the in charge of the Banks Management in place of an agent." Shri S. Mahalinga Iyer succeeded him as Secretary who subsequently became the First full-time MD of the Kumbakonam bank as per the amendment of Articles in 1929. From 1926 to 1929, he held the position of Secretary and that of MD from 1929 to 1963. in the beginning. The bank preferred the role of a regional rural bank and slowly built an office in the Delta District, Thanjavur. On 24th January 1930, the first branch of the Bank was opened at Mannargudi. After that, branches were opened at several places within a span of 25 years. On November 14, the bank celebrated its golden jubilee at Kumbakonam.