How to buy desi revolver in india?

First of all let me tell you what kinds of revolver you can purchase in india.
Available lists of Desi revolver for sale are :-

0.22" Revolver
0.32" Revolver (7.65 mm x 23)
0.32" Revolver (Long Barrel)
0.32" Pistol
0.22" Sporting Rifle
0.315" Sporting Rifle
30-06 Sporting Rifle

Average pricing is 85,000 to 1,50,000 including tax.

Dealer will ask you all the important information like
name,
father's name,
telephone no. with std
code/mobile no.
full postal address
permanent address
arms licence no.
whether licence valid for
32 or n.p bore revolver
arms licence valid area
arms licence valid date
arms licence issuing
authority
address in arms license
full postal address of arms
licence issuing authority
pin code: tel no. with std code-
bank draft no. & date
bank’s name & branch
specimen signature of the applicant

If you really want to buy or more information go to official pages where you cold have address of delears, price etc

http://ofbindia.gov.in/index.php?wh=Purchase&lang=hi#How