evidence: Four states—Himachal Pradesh, Uttarakhand, Sikkim, and Arunachal Pradesh—as well as the Union Territory of Ladakh (formerly the state of Jammu and Kashmir) border China. [...] It is situated between China's Xinjiang Province and the Union Territory of Ladakh, once the state of Jammu and Kashmir. [...] Nelang, Pulam Sumda,Sang, Jadhang and Lapthal( Uttarkashi district of Uttrakhand).