The Talwar-class frigates or Project 11356 are a class of stealth guided missile frigates designed and built by Russia for the Indian Navy. The Talwar-class guided missile frigates are the improved versions of the Krivak III-class frigates used by the Russian Coast Guard. The design has been further developed as the Admiral Grigorovich-class frigate for the Russian Navy. Six ships were built in two batches between 1999 and 2013.

The Krivak class, Soviet designation Project 1135 Burevestnik, are a series of frigates and patrol ships built in the Soviet Union primarily for the Soviet Navy since 1970. Later some sub-branches, like the Nerey (Nereus) were designed for coastal patrol by the KGB Border Troops. Until 1977, the ships in the class were considered to be large anti-submarine warfare vessels.