INS Gomati firing one of its missiles
Weapons: Four P-20M (SS-N-2D Styx) AShMs, with active radar or infra-red homing to 83 km at 0.9 Mach. Becomes a sea skimmer at the end of run. Has a 513 kg warhead.
For air defense, the vessels are fitted with one OSA-M (SA-N-4) SAM launcher with SAR homing to 15 km at Mach 2.5 with 50 kg warhead, with a service ceiling of 3048 meters, carries 20 OSA-M missiles. INS Ganga has been refitted with the Barak SAM system and was operational by March 2003.