By Vikas Sir, Founder & Senior Faculty – Cosmo Classes | 11 July 2026

INS Mahendragiri, an indigenous stealth frigate of the Indian Navy, is scheduled for commissioning on 11 July 2026 at the Naval Dockyard in Visakhapatnam. Defence Minister Rajnath Singh will preside over the ceremony. The warship was built by Mazagon Dock Shipbuilders Limited (MDL), Mumbai, and designed by the Indian Navy's Warship Design Bureau.

The frigate is part of Project 17A, a follow-on programme to the Shivalik-class frigates, comprising the Nilgiri-class stealth frigates. INS Mahendragiri is among the last frigates of the Project 17A series, which is associated with a reduced radar cross-section, modern sensors and improved combat systems.

INS Mahendragiri has more than 75% indigenous content, reflecting India's push towards self-reliance (Aatmanirbhar Bharat) in warship construction. MDL is a major public sector shipyard under the Ministry of Defence and has built several frontline naval vessels for the Indian Navy.

The frigate is named after the Mahendragiri mountain range in the Eastern Ghats and is the first Indian Naval warship to carry this name. Equipped with stealth features, modern weapons, advanced sensors and automated platform management systems, it is expected to join the Eastern Fleet for multi-dimensional warfare in the Indian Ocean Region and the wider Indo-Pacific.

Exam Facts

▶ INS Mahendragiri is commissioned on 11 July 2026 at Visakhapatnam.

▶ It is part of Project 17A (Nilgiri-class stealth frigates), a follow-on to Shivalik-class.

▶ Built by Mazagon Dock Shipbuilders Limited (MDL), Mumbai; designed by the Warship Design Bureau.

▶ The frigate has more than 75% indigenous content.

▶ It is named after the Mahendragiri mountain range in the Eastern Ghats.

▶ It is expected to join the Indian Navy's Eastern Fleet.

Practice Set (6 Questions)

Q1. INS Mahendragiri, commissioned in July 2026, is which type of naval vessel?
A. Submarine
B. Stealth frigate
C. Aircraft carrier
D. Destroyer

Show Answer

Answer: B – Stealth frigate. It is a Project 17A Nilgiri-class stealth frigate.

Q2. INS Mahendragiri belongs to which project?
A. Project 15B
B. Project 17A
C. Project 75
D. Project 28

Show Answer

Answer: B – Project 17A. A follow-on to the Shivalik-class frigates (Nilgiri-class).

Q3. INS Mahendragiri was built by which shipyard?
A. Cochin Shipyard
B. Mazagon Dock Shipbuilders Ltd
C. Garden Reach Shipbuilders
D. Hindustan Shipyard

Show Answer

Answer: B – Mazagon Dock Shipbuilders Limited (MDL).

Q4. The frigate is named after a mountain range in which mountain system?
A. Western Ghats
B. Eastern Ghats
C. Aravallis
D. Vindhyas

Show Answer

Answer: B – Eastern Ghats. The Mahendragiri range lies in the Eastern Ghats.

Q5. INS Mahendragiri was commissioned at which port city?
A. Mumbai
B. Kochi
C. Visakhapatnam
D. Chennai

Show Answer

Answer: C – Visakhapatnam.

Q6. Approximately what share of INS Mahendragiri is indigenous content?
A. More than 50%
B. More than 60%
C. More than 75%
D. 100%

Show Answer

Answer: C – More than 75%.

UPSC / RPSC Relevance

  • UPSC Prelims: Defence, indigenous warships (Project 17A), naval commands & fleets.
  • UPSC Mains – GS Paper III: Defence indigenisation, Aatmanirbhar Bharat, maritime security.
  • RPSC (RAS) / SSC / Defence exams: Current affairs, static GK on the Indian Navy.

UPSC Mains Descriptive Question

Q. The commissioning of indigenous stealth frigates like INS Mahendragiri highlights India's maritime self-reliance. Discuss the significance of indigenous warship building for India's security in the Indo-Pacific. (250 words, 15 marks)