Please. The "Third Bloc" is joke and barely more than self-aggrandizement on the part of a handful of nations the US and USSR have agreed to take a hands-off policy towards. Everybody knows both Hyperpowers had a gentleman's agreement not to try any covert operations or major diplomatic overtures in India for fear of the country's fragile domestic situation collapsing under the weight of its own internal contradictions and triggering a civil war so large and messy nobody would want to touch it with a 10 foot poll. Its the same reason Nigeria, Iraq, and the Sudan off the hook... who's cheap, closed petroleum market being among the few reasons what minimal industry India has is capable of surviving, even with wages that would make any of its allies look wealthy. The only reason their GDP is so high is because of their absurd population: Per-Capita, they're on par with Thailand.
And, to be honest, if the partition had been pulled off correctly and the right Princely States allowed to retain their independence, I'm sure some international agreement could be reached. Especially if the US and USSR stepped in to enforce regional stability