Basic General Knowledge
The battle tanks designed and developed by the Defence Research and Development Organization in collaboration with Heavy Vehicles Factory and Bharat Heavy Electricals Limited are

Arjun
Vijayanta
All of these
T-55 and T-72

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Basic General Knowledge
Missile 'prithivi' aims

to test the performance of an indigenously built heat-shield
to defend a large installations like oil-fields etc. against enemy attacks
to hit target without the help of the Air Forces
None of these

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