The city of Thrissur in the Indian state of Kerala was originally known as Thiru Siva Peroor. It is more commonly known by its anglicised name Trichur. It is the fifth largest city in Kerala as well as the third largest urban agglomeration in the state. The city functions as the headquarter of the Thrissur District. The city of Thrissur has developed around a 65-acre hillock known as the Thekkinkadu Maidan which houses the famous Vadakkumnathan temple. Thrissur used to be the capital of the Kingdom of Cochin in olden days. Thrissur is known for its cultural, spiritual and religious leanings throughout history and hence often referred to as the Cultural Capital of Kerala. Thrissur a major financial and commercial hub of the state, dotted with thriving Malayali entrepreneurs. The city is known for its financial capabilities which predominantly fuels the economy. Thrissur has the headquarters and offices of almost all the banks registered under RBI, thus earning it the nickname of the "Banking town." Thrissur is also gradually emerging as the largest center for Ayurvedic drug manufacturing industry with more than 150 manufacturing units within the city. Modern retailing has also become a big business and revenue earner in Thrissur. Jewelry and textile retailing occupy a major part of Thrissurs retailing business. Famous jewelry groups like Kalyan Group, Joyalukkas, Jos Alukka & Sons, etc. have their bases in the city and provide employment opportunities to a lot of residents.
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.