The main component in any future stand off will be the IN. The role for Karachi will be designation to the strike groups of IN Airforce. The objective the naval base in Karachi and the fuel storage facilities. Goes without saying striking emergency reserves will be easier said than done. we will need bunker busters or better for these.
Expect the PAF to carry out pre-emptive strikes on IAF bases along the border, coupled with long range artillery strikes. IAF main role, will be to withstand first wave and go after the radar centres with either choppers, air drops or stand off BrahMos. If I am not mistaken the Jag strike packages will be used to target both radar centres and runways, supported by Sukhois and AWACS. Mig 21s with radars switched off may escort the Jags. The main threat will be Jacobabad. The base with the F-16s (if I am not mistaken)
Tank warfare, is a little difficult to foresee. Because, this would depend on time of year. Also, Mig 27 with its CBU 105 will be a major threat to PA tank formations, even before the IA aviation wing comprising the attack choppers comes in to play. Hence the threat in case a frontal assault between armoured formations will be Mig 27 with CBU 105, followed by stand off IA aviation assets ATGM and then followed by IA armoured corps. The Kashmir sector will probably have long range artillery duels and a push by PA/ tribal wave attacks in the Rajouri, Poonch and Kupwara sectors. The only way to mitigate this would be a push in to Pakistani territory along the Punjab border toward force the PA to reassign assets. The underbelly to hit will be the Rann of Kutch region. But, I am not sure we have the capability to transport troops over the marshes in the numbers required for the same though lots of war games and training has happened here. I seriously, believe the Jaisalmer base has been activated to launch strikes across the border and co-ordinating with the Bhatinda based forces. This would result in 2 pronged approach with a middle push coming from the Bikaner based forces.
Basically pin the PAF into a defensive role. The PA's main assets will be the long range artillery. And threat of missile exchange. But, most of the above will not serve any strategic gains as far as India is concerned. Hence, India 's political objective will be exercise restraint and let the PA forces cross first. Military objective should be degradation of economic capabilities through targeting ports and prevent PA from devoting optimal resources across one point of contact.
Ofcourse, I am playing arm chair general here and I don't think India should initiate any military use till upgrades of the armed forces are completed. Comments please! Hopefully sensible
and experienced ex-military could punch holes in the above!