North Dumdum is a thriving city in the Indian state of West Bengal. It is a municipality in the Barrackpore subdivision of the North 24 Parganas district and consists of localities like Nimta, Birati and parts of Rajarhat. The North Dumdum municipality was established in 1870. During the partition of Bengal in 1947, numerous refugees had migrated to this region from former East Pakistan. Initially, the bulk of refugees were mostly non-agriculturists and they made some vocational arrangements of their own by taking to squatting. They indulged in the forcible occupation of barracks and collectively took-over the private and government lands. By the year 1949, several refugee colonies had emerged in the area. Within very less time, these squatters not only found places to stay but also developed a properly functioning society with markets, schools, temples and eventually built colleges, hospitals and recreational centers. North Dumdum has over 2.5 lakh residents now. It houses the Netaji Subhash Chandra Bose International Airport, which is the only international airport in the state. This area comes under the Kolkata Metropolitan Area and most of its residents work in the various service sectors of the neighboring metro city.
TMB, a private sector bank established in 1921 as Nadar bank, later the name changed to Tamilnad Mercantile Bank in November 1962. 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. AMMS Chinnamani Nadar found the other founding members of the bank and played a significant role in its formation in 1921. Outside Tamil Nadu, the bank opened its first branch in Bangalore in 1976. The bank had only four offices by 1947: Sivakasi, Tuticorin, Madurai, Virudhunagar. On 9 December 1984, the bank opened its first computerized branch in Tuticorin at WGC road. In 1983, the bank started using modern technologies and was the first to adopt computerization for branch level operations. All the 500 branches of the bank are connected using Infosys FINACLE software. For providing payment gateway services to its internet banking customers, TMB has partnered with Pay U India, Bill Desk, CC Avenue, etc. It is the first bank to provide POS machines and mobile banking to its customers. For connecting Head office with regional offices, the bank has adopted video conferencing facility. For ATM operations, TMB is a member of National Financial Switch.