HMIS Kistna (U46)

History
Royal Indian Navy
Name:	Kistna(U46)
Namesake:	Krishna River
Ordered:	10 September 1941
Builder:	Yarrow Shipbuilders
Laid down:	14 July 1942
Launched:	22 April 1943
Commissioned:	26 August 1943
Out of service:	1981
Honours and awards:	Atlantic, 1943 Burma, 1944-1945
Fate:	Scrapped
General characteristics
Type:	Sloop-of-war
Displacement:	1,250 tons original 1,350 tons modified
Length:	299 ft 6 in (91.29 m)
Beam:	37 ft 6 in (11.43 m) original 38 ft 6 in (11.73 m) modified
Draught:	11 ft (3.4 m)
Propulsion:	Geared turbines, 2 shafts: 3,600 hp (2.68 MW) (original) 4,300 hp (3.21 MW) (modified)
Speed:	19 knots (35 km/h) (original) 20 knots (37 km/h) (modified)
Range:	7,500 nmi (13,900 km) at 12 kn (22 km/h)
Complement:	180 (original) 192 (modified)
Sensors and processing systems:	Radar Type 272 for surface warning Radar Type 285 for fire-control
Armament:	6 × QF 4 in (102 mm) Mk XVI AA guns (3 × 2) 4 × 2-pounder AA pom-pom 4 × 0.5-inch (12.7 mm) AA machine guns (original) 12 × 20 mm Oerlikon AA (6 × 2) (modified)

HMIS Kistna (U46) was a Black Swan class sloop which served in the Royal Indian Navy (RIN) during World War II.

After independence, she was commissioned into the Indian Navy as INS Krisna.

HMIS Kistna was ordered under the 1940 Build Programme on 10 September 1941. She was built by Yarrow (Shipbuilders), Limited and commissioned in 1943.

With World War II underway, she was soon deployed for convoy escort duties between the UK and West Africa. In November 1943, while escorting a convoy to Liverpool, the convoy was sighted by German aircraft. Wolfpack Schill was formed to attack the convoy, which was repelled by the escorts, including HMIS Kistna. HMS Chanticleer (U05) was hit by a torpedo and took major damage in the attack. A mercantile vessel being escorted was sunk and another damaged by German aircraft with HS 233 glider bombs.

HMIS Kistna was transferred to the Eastern Fleet and continued to escort convoys en route to Bombay. In the Eastern Fleet it continued escort duties in the Persian Gulf, the Bay of Bengal and the Indian Ocean. It supported military operations by the British Indian Army and the British Army in Burma.

In December 1944, she joined a task force with HMIS Jumna, HMIS Narbada (U40) and HMS Flamingo (L18) to support the advance by the Indian Division down the Mayu peninsula in Burma as a part of Operation Romulus.

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