I found this information. India has strict laws regarding firearms. I assume you knew that. But from what little that I read it would be very hard to get access let alone own a firearm. But please do more research on this because I don't know the local laws in your country.
History With the British uprising in India in the middle 1800s, incidents like bad pay, racial insensitivity, poor terms of pensions, increasing cultural indifference etc. on the part of the British officers contributed to the discontent among Indian soldiers. The sepoy mutiny of 1857 was an...
legaldesire.com
One of the threads from Reddit I saw someone posted the following:
"You need to get a license. My dad has 4 guns (he likes collecting so they're all antiques). Keep in mind that before every election whether is municipal, state or lok sabha you'll have to submit the gun at the local police station and you'll have to keep a track of the number of bullets too"
The wanton display of firepower in the Ponty Chadha case startled many. Who does the booming market for killer toys cater to?
m.economictimes.com
So unless you know someone who owns a firearm, find a partner maybe, or know your way around the black market to get a firearm illegally then it's going to be hard to get one.
Edit: Apologies but for some reason the Reddit threads I was trying to post aren't working. If you're curious search 'how to get a gun in india Reddit' and you'll get information about it. Remember to research this on your own.