Kolkata (formerly Calcutta) is the capital of India's West Bengal state. The metro area has almost 15 million people.
Founded as an East India Company trading post, it was India's capital under the British Raj from 1773–1911. Today it’s known for its grand colonial architecture, art galleries and cultural festivals. It’s also home to Mother House, headquarters of the Missionaries of Charity, founded by Mother Teresa, whose tomb is on site.