Hello Udaykiran

In India, We have two different departments under the Ministry of defence to deal with weapons.

DRDO - Defence Research and Development Organization.

DDP - Department of Defence Production.

DRDO is a design agency for design and development of weapons. The recruitment for this organization is done through GATE exam and after clearing this exam you will be designated as Scientist B …you will deal with design of different weapons like Artillery guns, rifles, machine guns, armoured combat vehicles, howitzers, missiles, torpedoes etc.

Under DDP we have Ordnance Factories which is directly under the department and defence PSUs like BEL, BDL, BEML, HAL etc. In DDP the main mandate is to manufacture the weapons rather than design ..so the factories under DDP involve in the bulk production of weapons and supply to Indian armed forces.

Recruitment for officers in Ordnance Factories is done through UPSC ESE and the engineers in the defence PSUs are recruited through GATE Exam.

If you want to be hardcore weapon designer and if you have aptitude to design weapons , go and join in DRDO.