An Independent Kashmir will be pro Pakistan. Indians know that. Pakistanis know that. The Muslims in the part of Kashmir under Pakistan administration (Azad Kashmir) have no desire to join India--on the contrary. Further, India needing so many troops in IoK is a clear proof of the 'occupation' nature of the Indian presence there.
Frankly, Indians are stupid to think they can ever have peace with Pakistan when India continues to treat Kashmiris like Israelis treat the Palestinians. If India was reasonable, they could come to some agreement along the line of Musharraf-Manmohan dialogues. But under Modi, India has delusions of grandeur and they are certainly dangerous delusions and totally unachievable: India can NEVER subjugate Pakistan without destroying India itself.