If there is a Chinese thrust in the NE, India should try to hold the line there, but attack all out in the POK area and cut off the PRC-TSP link, then take out the Chinese installations at the south of Myanmar and cut off all oil shipping to China until the PLA withdraws from both Arunachal and Greater Arunachal (aka Tibet). The war in POK will lead to Paki antics, which should then be used to wipe out Gwadar facilities. Also use the opportunity to knock out the Marxist regime in Nepal.
Thus the Chinese will end up with an unsustainable supply line to Arunachal, but with a terribly weakend strategic posture, with the TSP link gone, Gwadar gone and Nepal gone.
The known Chinese strategic reserves are over 125 million barrels of refined oil for automobiles,means ready for usage.And 10-20 million barrels of aviation fuel apart from 200 million barrels of crude oil which was stored in the underground storage facilities.( this is 2008 year end report)
It means even if the war is escalated into a fully blown out conventional,we are the ones who will be out of fuel and running to gulf or haggling the local producers for oil.
A blockade of chinese supplies in the arabian gulf will do less to china in terms of its war fighting .On a one-one fight we will be out of resources first if all the forces are applied .
china wont venture into IOR untill its slaves both paki and bangla take losses and keeps a part of IN fleet engaged.Hence we can only apply a part of Army while other part being help in engaging Pakis.Same goes with IAF.A war with china next time is like a trilateral war,Unless India takes some bold steps in dealing with pakis.
War on the western front has to be ended in no more than 2 days(being highly confident that pak wont dare to use its nukes under US pressure)and sanitizing operation has to start while the rest of the forces relieved in western front can do a backup job on the eastern side.It takes a min of 2 days for china to move a significant amount of its troops from its eastern coasts where majority part is concentrated.
But there is a lot of uncertainty that both china and India throwing nukes at each other.
In a pure conventional war on north-east, we can keep moving ahead on the tibet apart from holding down our positions and fortifying them.since tibet is a highly fortified landmass as compared to Indian side ,we better take defensive positions rather than offensive on north-east.
The moment when whole pak looses on its mainland and in Kashmir,China will definitely take the pressure and if the war still continues a world pressure will mount of both giants ending up the war,with both LAC and LOC lines moved in India`s favor.