My understanding is that the Indian visa process is considerably more complicated and time consuming if you are of Pakistani descent, but you are unlikely to be denied the visa if everything checks out. I don't believe the government publishes visa rejection rates though, so this is anecdotal.
If you're looking to go in January, I would advise you to apply ...
On Gerrys Visa’s Website there is a field where you can enter your passport number to track your visa application.
Alternatively, you can call them by searching your nearest office here and finding out the phone number.