Over 4500 155mm Towed guns are to be bought.
It will be fulfilled by
1. Atleast 645 M777s.
2. 155/45 OFB Dhanush guns, atleast 114.
3. DRDO ATAGS 155/52 guns , at least 400. ( Eventually ~1200 Guns)
4. A foreign 155/52 gun built under MII , atleast 1,200.
Then there is
1. 155/52 OFB upgraded Dhanush gun under trails ( this one is not linked to DRDO gun ). A good number of guns will be bought .
2. A plan to buy 105mm light field guns, maybe some ~300 will be bought. To replace pounders and Indian Light Field Gun.
OFB and Kalyani have concepts and plans ready for this.
Now coming to various products by Kalyani, I am not so excited about them in Indian service. Kalyani will get a big pie in DRDO ATAGS project. So the Bharat52 gun is eventually not going to come. Personally speaking , at least 200 Such guns should have been bought as at present we don't have a proven and ready to use new 155/52 gun.
As for Kalyani light gun, the closest competitor of M777 is 1,300 kgs heavier from Singapore , if Kalyani actually builds anything closer to that , a good portion of 500 ultra light guns with go to them.
@Water Car Engineer