Ambattur is situated in the Ambattur taluk near Chennai, in the Indian state of Tamil Nadu. It is a fast developing city that hosts residential localities as well as manufacturing units. Ambattur was earlier a village with large expanses of agricultural farmlands irrigated by the Ambattur Lake. The Ambattur industrial estate established in 1964, increased the growth and development of the region. Ambattur falls under the Sriperumbudur parliamentary constituency. It has more than half a million residents and the city is organized into 52 wards for able administration. There are three major waterbodies in Ambattur - the Ambattur Eri, the Puzhal Eri and the Chithu Oragadam Lake. Problems such as dumping of garbage, sewage, water mining and construction of buildings have severely threatened the upkeep of these water resources. The industrial units drive the economy of Ambattur. It was a renowned auto ancillary hub which was joined by many IT companies in the late 2000s. The city has several manufacturing units of military tanks, textile industries, railway concrete sleepers, etc. IT companies such as MilesTs, Dell, Tata Consultancy Services, HCL Technologies, etc. have their development centers in Ambattur. A variety of birds reside in and around Ambattur; several woodland birds and water birds visit the region.
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.