- Steel for INS Dunagiri, Agray, and Sanshodhak
New Delhi. ; Steel Authority of India Limited (SAIL), a Maharatna Central Public Sector Enterprise under the Ministry of Steel, has yet again played a pivotal role in strengthening the nation’s naval capabilities by supplying the entire 5,700 tonnes of special steel for three recently commissioned ships of the Indian Navy-advanced stealth frigate INS Dunagiri, the anti-submarine warfare shallow water craft INS Agray, and the survey vessel (large) INS Sanshodhak. The three advanced vessels were formally commissioned into the Indian Navy on June 21, 2026, by Honourable Prime Minister, Shri Narendra Modi during a landmark ceremony held at the Syama Prasad Mookerjee Port in Kolkata.
The steel supplied by SAIL includes special quality DMR 249A grade hot-rolled sheets and plates. This specialized, defence-grade steel was meticulously manufactured and supplied from SAIL’s flagship facilities at Bokaro, Bhilai, and Rourkela Steel Plants, underscoring the Maharatna’s robust technological capability in supporting India’s maritime defence infrastructure.
SAIL continues to propel the nation’s Atmanirbhar Bharat and Make in India initiatives. By producing specialized steel for critical naval platforms, SAIL has become integral part to India’s defence indigenisation. To meet the emerging requirements of the defence sector, SAIL has taken extra measures well in advance to enhance the production of DMR Grade plates for defence requirements at its Plate-production facilities, specifically at the Special Plate Plant in the Rourkela Steel Plant. This strategic move is clearly reflected in India’s growing import substitution in the field of defence-grade steel. Its stellar track record includes provisioning the landmark indigenous aircraft carrier INS Vikrant, alongside the elite Project 17A stealth frigates-INS Nilgiri, INS Himgiri, and INS Udaygiri. Furthermore, SAIL’s specialized steel forms the backbone of formidable vessels like INS Ajay, INS Nistar, and INS Anjadeep among others. The successful induction of these advanced warships marks a defining milestone in India’s maritime capabilities and sovereignty.
SAIL CMD Dr. Ashok Kumar Panda said, “As a key partner in India’s defence sector, SAIL remains deeply committed to national self-reliance. To stay ahead in the defence sector’s growing needs, the company boosted its manufacturing capacity for DMR Grade plates -focusing heavily on the Special Plate Plant at the Rourkela Steel Plant. Delivering these high-strength DMR 249A steel plates protects India’s strategic independence while highlighting SAIL’s cutting-edge technical expertise.”
