$HAL Selected Indian defence companies and their specialisations: 1. Hindustan Aeronautics – Military aircraft, helicopters, aero engines & structures 2. Bharat Electronics – Radars, comms, EW & naval systems 3. Bharat Forge – Artillery guns, ammunition, tank parts, armour solutions 4. Solar Industries – Explosives, propellants, ammo, pyros 5. Bharat Dynamics – Guided missiles, launchers, underwater weapons 6. Mazagon Dock – Destroyers, frigates, subs, merchant vessels 7. Cochin Shipyard – Aircraft carriers, ASW crafts, tankers, cargo ships 8. Data Patterns – EW, avionics, command systems 9. BEML – Defence logistics & tank transporters 10. GRSE – Frigates, corvettes, patrol vessels 11. Zen Tech – Defence electronics, simulation systems 12. Midhani – Special alloys for defence & aerospace 13. Astra Microwave – Microwave subsystems, waveguides 14. MTAR Tech – Precision-engineered defence components 15. DCX Systems – Defence-grade communication systems 16. Apollo Micro Systems – Tactical embedded systems 17. Ideaforge Tech – UAVs for defence applications 18. Paras Defence – EW, optoelectronics, comms. 19. Rossell India – NV devices, thermal imagers. 20. Taneja Aerospace – Aerospace assemblies & components 21. Krishna Defence – Body armour & protective gear.