The answer is simple...
1- Although we,India, shout loudly towards Pakistan posters, but honestly, it is not like we all would like to Pakistan as a nation crumbles and people dies because of war..India and its politician are not affensive in nature not in attitude.
2- My above statement is true except 2 people such as Indira Gandhi and Narendra Modi...
3- To be honest, India even do not like to take up other parts of Kashmir...Other parts of Kashmir is only needed to create connectivity with Cenyral Asia..Otherwise, India and its people are well aware that We are good and happy with whatever we have it right now..
4- The most imporant thing is that, out priority is always different...Our people and mindset is not war prone mindset...No one talks about war and all these things...People put pressure on Gov for develpment of the nation..No one want to stay in anxiety of war..And on top of that except BJP,rest of the political parties feel that if India fight with Pakistan, then they loose the Muslim vote. I am not sure how much this is true, but this is the mindset for which they never get aggressive..That is the same reason why BJP is aggressive to Pakistan because Muslim more or less do not vote for BJP and this BJP does not carry this liability of being good with the Muslims...
5- Although Pakistan feels that India is bleeding in Kashmir, but in the real term, it is not so much money for India so that they will bend back to listen to the terms of Pakistan....So in the quest of funding terrorist to Kashmir and India, now Pakistan branded itself so -vely that everyone can see it..And the same terrorist elements are killing innocent civilian of Pakistan now..