The twin cities of Kalyan-Dombivali are located in the Kalyan region of the Thane district of Maharashtra. Both these township form the Kalyan-Dombivali Municipal Corporation and are part of the Mumbai Metropolitan Region. With a total population of 1.2 million, this ranks as the 7th biggest city of Maharashtra, with a literacy rate of over 91 percent. The majority of the population speaks Marathi. Kalyan was earlier known as Callian or Callianee, and had been an important Portuguese trading center until the Marathas captured it in 1739. The fort of Kalyan was built during the Mughal era. Thane District is dotted with lakes including Masunda Talao, Upvan Lake, Kacharali Talao, Makhamali Talao, Siddheshwar Talao, Bramhala Talao, Ghosale Talao, Railadevi Talao and others. The district has a total population of 11 million, the literacy rate is over 84 percent and 41 percent of the population is part of the workforce. 17 percent are employed in the agriculture sector, 3 percent in the household industry and the bulk 80 percent in services and industry. Thane is the 3rd most industrialized district of the state of Maharashtra and the economy of the district is primarily dependent on the non agriculture sector. Bhiwandi, another city in the Thane district that is close to Kalyan-Dombivali is famous for its handloom products. Major exportable items from the region include Nylon Synthetic Readymade Garments, Embroidered Fabrics, Cotton and Silk Textiles, Food Products, Machine tools, Pharmaceutical Products, Electronics and Engineering products, Chemicals, Paints, Varnish and Information Technology products. Thane was the first railway terminus built in India in 1853 by the British.