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.
In 2000, Indian Overseas Bank engaged in an initial public offering (IPO) that brought the governments share in the banks equity down to 75%. In 2001, the IOB acquired the Mumbai-based Adarsha Janata Sahakari Bank. Then in 2009, the bank took over Shree Suvarna Sahakari Bank, which was founded in 1969 and had its head office in Pune. Since 2006, Shree Suvarna Sahakari Bank had been in administration. It had nine offices in Pune, 2 in Mumbai and 1 in Shirpur. The total strength of employees was estimated to be more than 100. On 29 August 2003, the Indian Overseas Bank has opened an extension counter at New Kathiresan Temple complex, Bambalapitiya, Ceylon. The IOB opened a representative office in Guangzhou, China in 2005 followed which the bank opened another representative office in Kuala Lumpur and 2009 in Dubai, UAE. In the new millennium, international expansion started once again. The bank took over Bharat Overseas Bank in 2007. After three years, Malaysia granted a commercial banking license to a local bank jointly owned by BOB, IOB, and the Andhra Bank. The new bank named, India International Bank ( IIB Malaysia), began its business in 2012 in Kuala Lumpur and had a large population of Indians. The Andhra Bank holds a 25% stake in its joint-venture, BOB owns 40%, and remaining 35% is with IOB. On 31 August 2013, the Indian Overseas Bank has opened an offshore banking unit in Colombo, Sri Lanka. The bank also converted its existing Extension Counter at Ceylon into a full-fledged branch.