Everyone (especially pak trolls) are forgetting that T-72 and up have boronated armour + NBC liners....that stopped Western development of tactical neutron bombs dead in its tracks in the 70s and 80s when they conducted tests on neutron transport through armour. The literature is out there for those interested.
Even if the ballistic trajectory of the Nasr is not intercepted by whatever SAM system India deploys with its mechanized cavalry (and thats already a big if)....the impact of the kill radius is severely mitigated by the relevant Tank armour itself....leading it to be probably not much more or even equal to the blast/thermal radius.
Combine this with the sheer inefficiency of fissile material use per yield and the strong probability (if you look at previous threads on the matter) that the Nasr's yield is no more than 1 kt at most given the volume considerations + lack of Gen 2 or Gen 3 linear implosion design available to Pakistan.....then it is safe to say that this is not anywhere close to being any sort of game changer (especially in the numbers that they would need to be deployed to have a footprint even theoretically, taking material away from the strategic arsenal in the process)....and one that is even more easily countered by India in the long run.
The T-72/T-90 boronated armour + ERA tiles + NBC liner is already fielded. Better SAMs would simply keep the spear of the tank formation unsullied for even longer.....and the waste of nuclear material in the Nasrs if they are used....means fewer strategic warheads for India to worry about too. Literally every soldier that dies from the Nasr (those that even make it through) saves thousands+ of civilians each. Basically India should do nothing to stop Pakistan fielding as many Nasrs as they want....even in the worst case scenario of the 5kt claim, India can simply test the neutron flux against the doped + standard armour profiles that are needed to assure a certain standard of mitigation in the armoured formations.
The real threat from Pakistan emanates from the Babur cruise missile with Terrain hugging features for use of strategic warheads. I would assume India is working on specific modules regarding their AWACS in countering even this. I can explain how these methods work to some degree if anyone is interested.