1. Hindustan Aeronautics Limited (HAL): It was established in 1964 and has 12 factories located at-Bangalore (five factories), Koraput, Nasik, Karwa, Kanpur, Lucknow, Barrackpur, Hyderabad.
HAL has now undertaken production of MIG-27 aircraft.
2. Bharat Electronics Limited (BEL): It was established in 1954 and has nine factories, including the new units which are located at- Bangalore, Ghaziabad, Pune, Machilipatnam, Taloja (Maharashtra), panchkula (Haryana), Kotdwara, Hyderabad, Chennai.
BEL manufactures low and high power communication equipment like radars etc.
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3. Bharat Earth Movers Limited (BEML): It was established in 1964 and has three factories located at Bangalore, Mysore and Kolar/Gold Fields, where heavy equipment such as bulldozers, dumpers, loaders, cranes, etc., are manufactured.
4. Bharat Dynamics Limited (BDL): It was established in 1970 and is located at Hyderabad to manufacture guided missiles.
5. Ship-building Factories: (i) Mazgaon Dock Limited (MDL), Mumbai, is engaged in ship-building.
(ii) Garden Reach Shipbuilder and Engineering Limited (GRSE), Kolkata.
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(iii) Goa Shipyard Limited (GSL) was established in 1957 under the
Portuguese rule and taken over in 1961.
6. Mishra Dhatu Nigam Limited (MIDHANI): MIDHANI was
established in 1973 and has a factory at Hyderabad. They manufacture sophisticated and strategic special metals and alloys required by sectors like Nuclear Energy, Aeronautics, Space, etc. Other Defence Production Units are: (1) Praga Tools, Hyderabad. 00 Heavy Vehicles Factory, Avadi.