Dhanbad is second largest and the most populous city in the east Indian state of Jharkhand. It is popularly known by the name ?The Coal Capital of India?. Looking into the etymology, the name Dhanbad is believed to have been derived from the words "Dhan" which means wealth and Abad which means prosperity. When the words are put together, it means "prospered with wealth" for being a mineral-rich region. Another alternate explanation attributes the name of the city to its rich paddy fields as "Dhaan" in the local language means paddy. Both of these explanations make equal sense because the city is indeed quite rich in minerals and it also has the largest rice producing farms in Jharkhand. The chief economic source of the city is mining and some of the largest mining production units are situated in Dhanbad. Companies like Tata Steel, Eastern Coalfields Limited (ECL), Bharat Coking Coal Limited (BCCL), and Indian Iron And Steel Company operate in Dhanbad. Dhanbad Rail Division generates a lot of revenue and ranks second after the Mumbai division. Dhanbad has many reputed educational institutions such as the Indian School of Mines, IIT Dhanbad, Patliputra Medical College and Hospital, Central Institute of Mining and Fuel Research, etc. Places like Maithan Dam, Panchet Dam, Bhatinda Falls, Shakti Mandir and Topchanchi Wildlife Sanctuary serve as major tourist hubs in this 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.