UPSC Prelims PYQ | Transportation
Q1. Underground Railways are being built in India at (a) Bombay (b) Calcutta (c) Hyderabad (d) Madras (UPSC Prelims 1979) Answer: (b) Calcutta Explanation: Calcutta (Kolkata) was the first Indian city to build an underground railway system, known as the Kolkata Metro, inaugurated in 1984. It marked a milestone in urban transport, easing congestion and …