I have a shapefile with a polygon for each of these areas in Kashmir: Aksai Chin and Trans-Karakoram Tract (controlled by China); Jammu and Kashmir, Siachen Glacier, and Demchok (controlled by India); and Azad Kashmir and Northern Areas (controlled by Pakistan). Scale is 1:3 million, so it's good for medium- and small-scale maps. The file is ready, so I can send it immediately.