If Mr.Dutts lawyer argues Mr.Dutt has not committed any offence because he bought the weapons for self protection and not for committing crime,he is right.Mr.Dutt should be let free.
Honourable court may also pass an order that any body in India can buy weapons (be it a pistol or an assault rifle or may ba a hand granade) from any one ,but only for SELF PROTECTION.No need of any license,ofcourse.