|Builder:||Hindustan Shipyard Limited|
|Launched:||16 October 1989|
|Commissioned:||8 October 1991|
|Decommissioned:||1 November 2000|
|Homeport:||INS Virbahu, Visakhapatnam|
|Fate:||Sold to Sri Lanka Navy 1 November 2000|
|Career (Sri Lanka)|
|Acquired:||1 November 2000|
|Homeport:||SLN Dockyard, Trincomalee|
|Class and type:||Sukanya-class patrol vessel|
|Displacement:||1,890 tons (full load)|
|Length:||101 m (331 ft)|
|Beam:||11.5 m (38 ft)|
|Propulsion:||2 × diesel engines, 12,800 bhp (9,540 kW), 2 shafts|
|Speed:||22 knots (41 km/h; 25 mph)|
|Range:||7,000 nmi (13,000 km; 8,100 mi) at 15 knots (28 km/h; 17 mph)|
|Complement:||140 (incl 15 officers)|
|1 × Racal Decca 2459 search radar
1 BEL 1245 navigation radar
|Armament:||1 × 40 mm, 60-cal Bofors anti-aircraft gun
2 × 12.7 mm machine guns Yingi YJ-82 anti-ship missile
|Aircraft carried:||1 HAL Chetak|
She was formerly, INS Sarayu, a Sukanya-class patrol vessel of the Indian Navy sold to Sri Lanka in 2000. She was upgraded with new armament in India before being delivered to the Sri Lanka Navy. India also committed to providing maintenance and refit of the ship.
Sayura is tasked with deep sea patrolling both within the Sri Lankan territorial waters and in international waters to curb ongoing arms smuggling by the LTTE.During the 4th Ealam war after undergoing a major refit in India, Sayura, along with other OPVs of the Sri Lankan Navy, has 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.She was recently equipped with Yingi YJ-82 anti-ship missiles and surface to air missiles. 
The first Sri Lankan Navy officer to Captain the ship was then Captain SMAJ Perera USP,psc.
Since then it has been commanded by:
Captain(Later CMDE while commanding) AARA Dias RSP,USP,psc,MSc(DS)
Captain AR Amarasinghe RSP,USP,psc
Captain RC Wijegunaratne WV,RWP,RSP,psn
Captain DMS Dissanayake RWP,psc
Captain(Later CMDE while commanding) KKVPH De Silva WWV,USP
CMDE SWC Mohotty MSc(DS)Mgmt)
CMDE NAN Sarathsena RSP,MSc(DS)Mgmt.
CMDE WASS Perera RWP,RSP,USP,psc
Commissioned 10 April 1991, INS Sarayu (P54) served with the Indian Navy until she was sold to Sri Lanka on 1 November 2000.
- "Title unknown".[dead link]
- "Title unknown" (pdf).[dead link]
- "Sri Lanka and India Navy conduct joint naval training exercise". Ministry of Defence and Urban Development - Democratic Socialist Republic of Sri Lanka. 6 October 2009. Retrieved 2009-10-16.