Few good reasons we supported Mukti bahini : 1. Pak dislodged a democratically elected leader from Bangladesh 2. The PAK army killed 3 million hindus (not to mention the torture, rape and sheer lawlessness). 3. They even started killing the muslims who supported the hindus.
We did not pro-actively foster problems in any area. It was a moral high point for India to liberate bangladesh (by sacrificing our soldiers and money). There is no moral high ground for pakistan. It is plain hatred !