Which zone of the Indian Railway is the shortest one?

Correct option is C

The Kolkata Metro is the shortest zone of the Indian Railway in terms of operational length. It is also the first metro railway system in India, inaugurated in 1984.

Key points:
● The Kolkata Metro operates under the Ministry of Railways as a separate zone.
● It initially ran a small stretch between Esplanade and Bhowanipore.
● Over time, its network has expanded but remains the shortest among railway zones.
● The metro uses advanced signaling systems and provides a vital urban transit solution.
● It serves millions of commuters daily in Kolkata and its suburbs.