Which city is called London of India?
Kolkata, Bengali Kalikata, formerly Calcutta, city, capital of West Bengal state, and former capital (1772–1911) of British India. It is one of India’s largest cities and one of its major ports.
Who made science city?
What does it take to popularize science? Presenting a TV series to explain the cosmological theories of the universe, like American astronomer Carl Sagan did in the 1980s?
Which is the black city of India?
Notes: Kolkata is also known as the Black City. The Black Hole of Calcutta is the name for a location in then-British-run Fort William on the River Hooghly.