Kolkata is the capital and largest city of the Indian state of West Bengal. It lies on the eastern bank of the Hooghly River, 80 km west of the border with Bangladesh. It is the financial center of eastern and northeastern India. According to the 2011 Indian census, Kolkata is the seventh-most populous city in India, with a population of 4.5 million residents within its city proper. Greater Kolkata has a population of 15 million residents. Kolkata is a historically and culturally significant city in the historic region of Bengal. It is the second largest Bengali-speaking city.
The three villages that predated Calcutta were ruled by the Nawab of Bengal under Mughal suzerainty. After the Nawab granted the East India Company a trading licence in 1690, the area was developed by the Company into Fort William.
Wikipedia https://en.wikipedia.org/wiki/Kolkata
Coordinates 22°34'21.525" N 88°21'50.023" E