That matters more than anything, it was India who started it. We followed it up, to an extent only: to support our brothers in Kashmir, we to this date haven't taken advantage of other hundreds of freedom movements in India. Your nation to this date finances and supports child murderers, live with that. You have started it, and there is no end to it unfortunately, once this shit starts, hardly anything can stop it now.
That part, I humbly beg to differ with. South Block, as frequently being claimed here, did not contemplate to break the Eastern wing of Pakistan all of a sudden in '71; there had been a strategic necessity for it for securing it's North East from the looming threat of Naga and Mizo insurgency. Rebels like Zhukuto Sema and Laldenga were getting clandestine backing from Pakistani agencies since 1950's. Training camps were allowed to mushroom in the Chittagong hill tracts whereas liaison setups were arranged in Dhaka. Anti-Indian protests became a regular broadcast in Pakistan radio; In 1967, a broadcast was aired as "Our struggle for freedom has its impact on other areas also. Today the Bharati Nagas are following in our footsteps. These Naga nationalists are fighting against the colonial power of Bharat as the Kashmiris are doing". Unfortunately, as many hoped then, insurgency could not be curtailed completely even after '71 but it needed another decade for the NE insurgency groups to reorganize and rearm themselves. But we all agree at one point that this 'who started it first' debate never ends. So it is futile to engage in it, I am afraid.
As far as India's support to Baluchistan is concerned, proxy war is a dirty business and apart from drying up one's national resources, I don't believe it serves any purpose. And it is illogical to believe that India too would want its hand burnt in Baluchistan, as it will immediately drag two of its friendly countries into the business. South block, at this critical juncture of shifting the center of geo-politics will certainly not desire to antagonize Pakistan's western neighbors.