Sir,
People have been fighting for their rights since thousands of years. And because the world has enough real time problems of its own to bother about non enforcable UN resolutions, won't stop the people for seeking freedom from tyranny and oppression.
The Brits held on to India till they couldn't and I think so will India hold on to its oppressed communities and lands till it would not be able to.
Despite your resolve and rising economy and spending money on Kashmiris and other NE states, you have not been able to curb this tendency imbued in human beings to be free, to seek freedom, to be able to decide for themselves what they want and not what is imposed on them.
Please judge the morality of holding on to something which is not yours, because you think you are strong or you think that these people are wrong or you think that you will be able to crush such thoughts and desires with your anger supported by your power.
Sir, it won't happen. And therefore, the sooner you let them have their freedom, the better it will be for the whole world.