What Are the Nav-Ratan Companies?

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There are nine Defence Public Sector Undertakings (DPSUs) , with 47 units & 41 Ordnance factories spread all over India. OFB: Ordnance Factory Board has developed infrastructure facilities for construction of - Missile, Tanks.

Defence Public Sector Undertakings
  • High explosive
  • Cartridge 105mm,
  • Rocket Pinaka restricted
  • high explosives etc

The details of major infrastructure and assets developed by Ordnance Factories and Defence Sector Undertakings are as under:


Hindustan Shipyard Limited (HSL) was in losses for many years due to lack of orders. However, it earned profit during the last two years. Hindustan Aeronautics Limited has developed following facilities for of Aircraft, helicopter. The facilities are

  • Design
  • Development
  • Manufacturing
  • Repair and overhaul

Avionics facilities are also established for manufacture of structures for space applications and manufacturing and repair overhaul of industrial and marine engines.


Bharat Electronics Limited has developed infrastructure facilities for design, development, manufacturing and supply of sophisticated strategic electronic equipment/systems primarily for the Defence in the areas of

  • Communication
  • electronic warfare & avionics,
  • missile systems
  • radar & fire control systems etc.


Bharat Earth Movers Limited

BEML has created excellent manufacturing and testing facilities for

  • armored recovery vehicles
  • high mobility vehicles
  • Hull for T-72 tanks
  • Arjun Armoured Repair and Recovery Vehicle (ARRV)
  • BMP transmission and ejector & air cleaner assembly etc.


Bharat Dynamics Limited

BDL has developed infrastructure facilities, which include

  • building, plant & machinery
  • testing facilities
  • modernization & automation of grain loading for Akash project etc.


  • Mishra Dhatu Nigam Limited has developed excellent facilities for making super alloys etc.


Mazagaon Dockyards Limited has huge infrastructure and assets. Few of them are

  • Fabrication shops
  • Dry Docks
  • Impounded wet basin
  • Slipways
  • Cradle assembly shop
  • Submarine assembly shop etc.


Garden Reach Ship Builders & Engineers Limited has acquired Raja Bagan Dockyard from Central Inland Water Transport Corporation (CIWTC) and has infrastructure facilities for construction of modern ships under large platforms like

  • Frigates
  • Anti-submarine warfare corvette
  • Missiles corvette
  • Landing ship tank etc.


  • Goa Shipyard Limited has undertaken a planned modernization programme and is in the process of creating infrastructure for Indigenous Construction of Mine counter Measure Vessels (MCMVs) etc.


  • Hindustan Shipyard Limited has developed infrastructure facility for
  • covered building dock
  • three slipways
  • repair graving dock
  • large wet basin with depth of 10M
  • high pressure hydraulic flushing facilities for submarines etc.

Background of Few Companies

  • Bharat Earth Movers Limited (BEML) had one time loss during the year 2012 - 13 due to an extraordinary situation. However, BEML earned profit during successive financial years.

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