to upflift the economy and get access to central Asia to transport your goods and open direct connection. You can also bring oil supplies directly from Turkmenistan.Explain the reasons as well.
Neelam Valley has very high potential of trourism that will further add to economy which most baniyas talk about.
This will also give opportunity to India to create strategic depth inside Pakistan.
There are many more reasons that is to counter Chinese in Karakoram, etc.
It also makes no sense of sending soldiers getting them killed without getting an inch of territory where as rest of India is busy watching cricket and making money.
All wars are being fought for the land, either Indians are so rich they don't need land or they can't.
If you don't take it then you will be losing whole Kashmir in near future. Pakistan will make sure that you fight with China.