Kolkata is the capital of the Indian province of West Bengal. Situated on the east bank of the Hooghly River around 75 kilometers (47 mi) west of the fringe with Bangladesh, it is the chief business, social, and informative focal point of East India, while the Port of Kolkata is India's most established working port and its sole major along a coast port. The city is mostly viewed as the "social capital" of India, and is futher nicknamed the "City of Joy".In 2011, the city had a population of 4.5 million, while the number of recident in the city and its rural areas was 14.1 million, making it the 3rd most crowded metropolitan region in India. Ongoing evaluations of Kolkata Metropolitan Area's economy have gone from $60 to $150 billion (GDP balanced for obtaining power equality) making it third most-beneficial metropolitan zone in India, after Mumbai and Delhi.
In the late seventeenth century, the three towns that originated before Calcutta were managed by the Nawab of Bengal under Mughal suzerainty. After the Nawab allowed the East India Company an exchanging permit in 1690,the region was created by the Company into an undeniably braced exchanging post. Nawab Siraj ud-Daulah possessed Calcutta in 1756, and the East India Company retook it the next year. In 1793 the East India organization was sufficiently able to abrogate Nizamat (nearby standard), and expected full sway of the locale. Under the organization rule, and later under the British Raj, Calcutta filled in as the capital of British-held regions in India until 1911, when its apparent land inconveniences, joined with developing patriotism in Bengal, prompted a move of the money to New Delhi. Calcutta was the inside for the Indian autonomy development; it remains a hotbed of contemporary state governmental issues. Following Indian autonomy in 1947, Kolkata, which was at one time the focal point of present day Indian instruction, science, culture, and legislative issues, endured quite a few years of monetary stagnation.