Since you mentioned UN resolution then I remind you if you have any doubt. Please read this UN resolution carefully.
First UN never said that India is illegally holding Jammu and Kashmir, prove you claim with UN statement? Don't quote your pakistani sources?
As Per UN resolution, pakistan suppose to back army from Jammu and Kashmir ( I am saying about gilgit- Balochistan, so called Azaad kashimir) in first step,
2nd step, Indian will deploy minimum forces to entire Jammu and Kashmir to maintain law and order.
3rd, Under UN representative voting will be happned.
So pakistan never agreed to withdraw army from part of Jammu Kashmir and after Shimla agreement, India will not agree for UN resolution.
That are facts, we can accept it or leave it. Nothing going to change. Thanks