My querry is based on assumption that PAF+PLAF operational no of a/c's is around 2500 while the no with IAF around 600-650??
Interesting question..
1. Survellence: Our Radars which includes of Low to high range are deployed near to borders any activity will be detected over their Airspace if any fighter took off we will know first..
2. SAM cover: The information will be transferd to SAM level radars which will engage any unauthorized access of any aircraft..
3. Fighters on both fronts:
Present situation is PLAAF deployed SU-30 / J-11 as for airdefence fighter over Tibetian terrain, the number of Aircraft we are facing from closest PLAAF bases are around 100 fighters at most, Where we deployed almost the same or more over NE, mainly consist of 2 squadrons of MIG-27/23 & 2 squadrons of SU-30MKI ( As per Media )..
Rest of the air-force which consist of MKIs and MIGs are distributed along Western border..
IAF Infrastructure is better than before over both fronts, recent images and information suggest that IAF have Strong Infrastructure over N.E...
Enemy SAMs:
Also do not this due to terrain drawback PLAAF /PLA Airdefence ( Long to medium range SAM ) wont be deployed over their sides, But on Our side over N.E we have mostly Plains where Akash SAM can work just fine, Over mountain terrains we have SA-6 and PLA or PLAAF don't have any equivalent ( Mobile Medium range sams )
Over Western Front PA have good airdefence mainly consist of aging Chinese copy of SA-2 guideline, Their is not much info they have latest Long-medium range SAMS from China..
But it wont be long when they have it, in that situation it depends on How modern IAF EW suite is..