The twin cities of Kalyan and Dombivli were joined and converted into the Kalyan-Dombivli municipal corporation in 1982 to improve the administration of the twin townships. The headquarter of this city is situated in Kalyan. Kalyan and Dombivli are both cities in the Thane District of Konkan division in Maharashtra state. The city comprises a majority of Hindu residents who speak mostly in Marathi. The weather in this city follows the exact trends as that of Mumbai and is known to experience the notorious Mumbai rains. The twin city of Kalyan-Dombivli had been under the reigns of the Mughal, the Portuguese as well as the British. The celebrated Maratha heroes, held in high esteem by the residents, were the only valiant defense against these foreign invasions. The city of Kalyan used to be surrounded by a fort wall which was constructed during the Mughal age and further improved by the Maratha rulers. It was called the Durgadi Fort. History claims that a small wooden temple dedicated to Durgadevi was behind the mosque inside this fort wall. However, this historical relic was dismantled by the British and the stones were used to build the piers of Thane and Kalyan. The idol in the temple was also stolen. Only the remnants of the north-west gate of this fort still remain to remind the people of the historic past.
In 1943, Rai Bahadur Lala Sohan Lal Ji, the first Chairman of OBC, founded it in Lahore. Within four years of its existence, the Oriental Bank of Commerce had to face Partition between India and Pakistan. The bank had to shut its branches in the newly formed Pakistan and move its registered office to Amritsar. The period of 1970-76 had been the most challenging phase in the history of the Bank. The OBC merged with Global Trust Bank (GTB) on 14 August 2004. The acquisition brought 103 branches with it, which increased OBCs branch number total to 1092. The bank presents a wide range of banking products and financial services such as deposit accounts, credit cards with a tie-up with SBI, Insurance products, ATMs, loans, debit cards, Internet banking, Self-banking halls, call center, mobile banking, etc. The Bank has introduced another peoples participation in the planning process at grass root level fundamentally to tackle the maladies of poverty. The Grameen Projects venture aimed to alleviate poverty while identifying the reasons responsible for the failure or success. The OBC has already introduced a GRAMEEN PROJECT in Dehradun District (UK) and Hanumangarh District in Rajasthan.