In the context of Indian urban planning around the 2001 period, particularly concerning schemes like the Mega City Project (launched in 1993-94), cities like Mumbai, Kolkata, Chennai, Bangalore, and Hyderabad were specifically included. Ahmedabad was a large metro but was not initially part of this specific 'Mega City' grouping or project. Standard global definition of Megacity (>10 million population) would exclude all options except possibly parts of the wider UAs of Chennai, Bangalore, Hyderabad reaching higher figures combined with suburban areas, but based on city/UA population, only Mumbai, Delhi, Kolkata were >10 million in