INS Sandhayak | UPSC


INS Sandhayak to be Decommissioned on 04 Jun 21

      WHY IN NEWS:

Hot from PIB !

MINISTRY? :- Ministry of Defence



  • Sandhayak was conceptualised by then Chief Hydrographer to the Govt. of India, Rear Adm FL Fraser, AVSM, Padma Shri who had a strong desire for indigenously designed and built hydrographic survey vessels in India.


  • The decommissioning ceremony of INS Sandhayak will be held at Naval Dockyard Visakhapatnam.
  • This will be a low-key event attended only by in-station officers and sailors with strict observance of COVID protocols.


  • The design was finalised by Naval Headquarters and the construction of the ship began at GRSE Kolkata (then Calcutta) by laying the keel in 1978. 

  • Since commissioning, she has been the Alma-Mater nurturing the hydrographers of the Indian Navy thereby laying the foundation of complete hydrographic coverage of the peninsular waters.
  • Also, the success of her design paved way for all the Survey ships of the Indian Navy in various modifications till recently.


  • The ship, during her commissioned service, has undertaken approximately 200 major Hydrographic Surveys.
  • The ship also took numerous minor surveys in both East and West coasts of the country, the Andaman seas and the neighbouring countries too.

Apart from Survey Missions, the ship has been an active participant in many significant operations such as:

  • Op Pawan – assisting the Indian Peace Keeping Force in Sri Lanka in 1987
  • Op Rainbow – rendering humanitarian assistance post Tsunami of 2004
  • Participation in maiden joint INDO-US HADR Exercise ‘Tiger-Triumph’.


  • The primary task of Sandhayak includes hydrographic surveys, nautical chart preparation, with cartography and training. 
  • Sandhayak is also equipped with ROV, AUV & USV.

  •  In 2015 Sandhayak was used to conduct a search of the sea floor of the missing Dornier 228 of the Indian Coast Guard and was successful in detecting the beacon signals of the missing aircraft.
  •  In 2016 Sandhayak conducted a survey off the coast of Rameswaram in a bid to find a new seaway that will allow larger ships to traverse the narrow Palk Strait.

      IASbhai WINDUP: 

  • In its glorious 40 years, the ship saw 22 Commanding Officers at the helm, with the last Commanding Officer taking charge of the ship on 17 Jun 19.
  • With the sunset on Friday, the Naval Ensign and the Commissioning Pennant will be hauled down for the last time onboard INS Sandhayak, in the presence of Vice Adm Ajendra Bahadur Singh, AVSM, VSM Flag Officer Commanding-in-Chief ENC symbolising the decommissioning.
     SOURCES:   PIB   | INS Sandhayak | UPSC

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