Indigenous Submarine Assembly Workshop of India Inaugurated at Mazagon (Download PDF)


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Manohar Parrikar a Union Defence Minister has inaugurated state-of-the-art submarine assembly workshop at the Mazgaon Dock Shipbuilders Limited (MDL) in Mumbai, Maharashtra. This is considered as a major step near self-sufficiency in the submarine construction for the Indian Navy.

Key facts:

  • The newly built Submarine Marine Assembly Workshop is a pre-engineered building structure.
  • It was completed at a cost of Rs. 153 crore.
  • It has capability to handle construction of multiple submarines simultaneously and it is also possible to assemble five submarines in the workshop at the same time.
  • The workshop has structures:
  1. sewage treatment plan
  2. grey water treatment plant
  3. rain water harvesting
  4. oily water separator plant for treatment of sewage
  5. oily water and grey water respectively
  6. with zero discharge into the municipal drains
  • This facility will support MDL to go in for a second line of submarines concurrently which is bring together Scorpene class submarines at its East Yard in association with DCNS of France.


  • This facility will confirm minor suspensions in building indigenous submarines for Indian Navy in the long run along with the envisaged second line of Scorpene submarines under strategic Project P 75I.
  • It will also give improvement to India’s acquired capacity to build submarines in the early 1980s which had constructed two submarines, INS Shalki and INS Shankul under a technology relocation agreement with German HDW.
  • But form last 20 years no other submarines were built after India decided to buy Kilo class submarines from Russia.

- Published/Last Modified on: May 31, 2016

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