Nilgiri-class stealth guided-missile frigates
♦ The Indian Navy commissioned two Nilgiri-class stealth guided-missile frigates, the INS Udaygiri and INS Himgiri, at Visakhapatnam on 26 August 2025. ♦ These are follow on ships of the Project 17 (Shivalik) class frigates. ♦ Udaygiri, built by Mazagon Dock Shipbuilders Ltd. (MDL), Mumbai, and Himgiri, constructed by Garden Reach Shipbuilders & Engineers (GRSE), Kolkata. ♦ Udaygiri also holds the distinction of being the fastest ship of her class to be delivered post-launch, a result of the modular construction methodology adopted by Indian shipyards. ♦ Displacing about 6,700 tons, the P17A frigates are roughly 5% larger than their predecessor Shivalik-class frigates. ♦ The new frigates are sleeker with a reduced radar cross section and incorporate significant improvements in design, stealth, weapon and sensor systems.