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.
The head office of the Tamilnad Bank is at Thoothukudi, Tamil Nadu. The primary objective of founding TMB was to serve the Nadar business community, and the idea was proposed at the annual meeting of Nadar Mahajani Sangam at Tuticorin in 1920. Outside the state of Tamil Nadu, the bank opened its first Indian branch at Bangalore in 1976. On 9 December 1984, the bank opened its first fully computerized branch at WGC Road, Tuticorin. On 11 November 2003, the Bank launched its ATM Card. In e-banking, RTGS/NEFT facilities have been successfully implemented by the TMB bank. The Tamilnad Mercantile Bank had the tie-up with Western Union Money Transfer to facilitate the remittances from abroad to India. For providing payment gateway services to the internet banking customers, TMB bank collaborated with BillDesk (India ideas.com), CCAvenue (Avenues India), SBI ePay, Atom Technologies and PayU India. It was the first old bank to supplying POS machines and introduce mobile banking to Customers. The bank had adopted a video conferencing facility for connecting with the Head Office, various Departments, and Regional offices. For its ATM operations, TMB bank is a member of National Financial Switch. The bank also introduced TMB e-passbook app as a part of its mobile banking operation.