Ok no offence, but I'm not here to entertain people with figures made up in the air. Idea of a forum is to exchange knowledge, people could be right or wrong. Regardless, a little respect is highly appreciated.
Back to your question:
Here is N.K Sinha - GM of Gun Carriage Factory, OFB - Jabalpur saying current rate is 1 gun per month and will be upgraded to triple capacity (3 guns per month after 18 months) - watch from minute 5:40 in the video.
So its not difficult to count how many guns can be produced in 10 years at a rate of 36/year?
And here's Baba Kalyani - Chairman, Kalyani Group saying they have the capacity for 100 guns/year. Watch from min 3.00 in the video.
On topic: I hope I'm not being mistaken as anti-public sector here. The best thing that can ever happen for our country is if our public sector can deliver within our expectations. Now we can ask for ourselves, did they?
Good Day!