Name the recently added 17th zone of the Indian Railway.

Correct option is C

​The correct answer is (c) Kolkata Metro.

• The Kolkata Metro is the 17th zone of the Indian Railways. It was added on December 29, 2010.
• Kolkata Metro is India's oldest metro, started in 1984.

Information about the other options:

• Konkan Railway: There in such railway zones like Konkan Railway
• Delhi Metro: The Delhi Metro is not a part of Indian Railways as it is an independent rapid transit system in Delhi and surrounding areas that started in 2002.
  
• East Central Railway: The East Central Railway is an existing zone of Indian Railways, but it was not the 17th zone.

Information Booster:

• Indian Railways, one of the world’s largest rail networks, spread thousands of kilometers across its 18 railway zones. These zones, are overseen by the Ministry of Railways.
• East Central Railway is headquartered in Hajipur, Bihar.