While this issue of artillery acquisition has been hanging fire for a long time, its repurcussions are not as grave as one would like to believe.
The issue is simply related to "mobile howitzers". As far as plain old arty. is concerned, India still has the M-46 130mm field guns in large numbers, many of which have already been upgunned to 155mm. And they really pack a big punch, much more than the 203mm howitzer that IK was displaying, no army in the world is chasing larger than 155mm guns now. Must be a reason for that!
While the field guns have punch, they lack mobility. Hence the quest for mobile arty.
However the advent of MBRLs has changed the rules of the game. They can put down a fearsome barrage which was the main role of Arty in the first place and to far more devastating effect than the guns. While being extremely agile, much more than the guns. So that function of Arty. is being increasingly taken over by MBRLs.
Now one remaining function of the Large Caliber Guns is that of precision hits on specific targets. With guidance functions being added to MBRLs and Tactical Missiles like 'Prahaar'; now even Large Caliber Guns will have to yield ground there. So in fact the role of LC Guns is shrinking rather than expanding. Only in hard-accessible terrain that the LC Guns have retained their utility. LC Guns have still one advantage; i.e. operating costs. But any Army with deep pockets will also look at other alternatives.
Just as Armies with deep pockets are increasingly investing in rotary winged assets to buttress their fire-power.
AFAIK, the IA is reworking their own Arty. doctrines to suit the present day scenarios. Whether LC Guns get inducted in humongous numbers remains to be seen eventually.