These vessels are capable of ocean surveillance and monitoring and can maintain control of shipping lanes.

[3] Saryu class was derived from Sankalp-class vessels built for the Indian Coast Guard.

[2][6] The vessels are powered by two Pielstick diesel engines rated at a combined 21,725 metric horsepower (15,979 kW), each driving a Wärtsilä WCP 5C10 controllable-pitch propeller through a reduction gearbox.

[9] INS Saryu was handed over to the Navy on 21 December 2012[10][11] and was commissioned on 21 January 2013 at Vasco da Gama, by the Commander-in-Chief of Andaman and Nicobar Command, Air Marshal P K Roy.

[2][12] The second ship, INS Sunayna, was handed over to the Indian Navy on 2 September 2013; her first CO was to be Cdr Aftab Ahmed Khan.