She was upgraded with new armament in India before being delivered to the Sri Lanka Navy.

During the 4th Ealam war after undergoing a major refit in India, Sayura, along with other OPVs of the Sri Lanka Navy, successfully intercepted several ships smuggling arms for the LTTE.

In all these cases the ships were sunk when the LTTE Sea Tigers attacked the naval vessels with mortars.

Sayura also participated in the Cadex 2009 military training exercises with the Indian Navy after the war ended.

Since then it has been commanded by: Commissioned 10 April 1991, INS Sarayu (P54) served with the Indian Navy until she was sold to Sri Lanka on 1 November 2000.