Hello,

after completing your betch you can specialise in weapons engineering as it can only be done in post graduation level

you have several option like

• Join DRDO through GATE
• join Indian defense technical wing , through technical entry

Best colleges in India to study weapon engineering

• Defense Institute of Advanced Technology, Pune
• College of Military Engineering, Pune

Best colleges in the world to study weapon engineering

• United States Naval Academy, USA
• United States Military Academy
• Naval Postgraduate School,
• Cranfield Defense and Security

Hope this helps you

best wishes for your future