Answer: 3rd
Notes: Calcutta (Kolkata) is India's third largest metropolitan city, after Mumbai and Delhi. Nearly 12 million people are packed into the city and its industrial suburbs. As the hub of eastern India, it is also a great center of commerce and industry. The city's museums provide information about Indian life and history. However, Calcutta is also a city of great poverty, its streets teeming with poor and homeless people.
