There shall be no war of attrition. The aims and objectives of IA in case of a future conflict (which is difficult to imagine in the prevailing scenario) will be to hold ground in sizeable chunks to force a resolution of the conflict at a political level and NOT for dissection/fragmentation of Pakistani state. Mobilisation has been a problem which has largely been negated with forward staging on weapons and stores as also improvement in rail-road communication links.
With the change in stress from conventional forces to specialised forces, IA is increasing its Special Forces and Airborne component. While 1,2,3,4,5,6,9,10,21 PARA (SF) 7,8,25(PARA) units are already in place, 11 and 12 PARA SF are being raised to further augment their numbers along with further enhancement of ancillary Airborne Uniits. There is further augmentation in pipeline, to ultimately raise and field 02 divisions worth of airborne troops with the necessary support and infrastructure.
On ground, the firepower is being augmented in terms of artillery support with another Artillery Division in process of being raised (42nd) and another in pipeline. The upgradation of M-46 130 mm by Soltam is roughly complete to 155 mm config. The aim is to have a greater number of SP and SP(APU) types to facilitate both armoured and mechanised as also SF ops.
Number of mechanized units is also going up slowly with more units getting mechanized to BMP-II configuration as of now.
The stress is on high tempo synergistic ops as envisioned by the Cold Start Doctrine. The existence of this doctrine is real and any denial by Indian COAS should be seen in backdrop of US pressure on GoI to keep the situation 'stable' and not to antagonise GoP and PA for their own interests.
As there is a convergence in US's and our interests at this point, GoI and IA are only too happy to accomodate them.
Impossible? I am sure your PA think tanks dont think so. As for conventional balance of forces, its askew. That is why you have had to go on to a first use policy, because whether you accept it or not, your defences will not be able to hold against a sustained high intensity offensive.
Your only alternative to relieve any pressure in plains will be to take the offensive in J&K. Be our guests.