malay there is not much use in arming anyone to which india cannot maintain a supply route. remember russia-vietnam-china.
india doesnt really have to arm anyone. remember only someone else will be ready to bleed for you if they feel you yourself are aggressive enough to take on that person who they are bleeding against if need be(even initiating an action).
as long as there is a clear and demonstrated assertion by india to move north if china moves east, that is more than enough to complete the encirclement that US has on china. we dont need to create a new rope.just tie the last knot on the earlier existing strong one that is created by a bigger bully than china. Resources must be used wisely not wasted. If India itself is hesitant to move north, then no one will be ready to bleed for India.
china for long has tried to bleed india via pakistan(who is more than happy to do it for free anyways). Unless it is demonstrated clearly that the loss for china for doing such action is greater than the benefits then they will continue to play that game. This is common sense and nothing to do with grand strategy.
For this an Indian army must be ready to march north without necessarily being attacked first but even if China goes east. Bottomline The question is does Indian establishment have the gall to do that and more importantly is preparing for that?
Rest everything else is pointless imho.