An agreement on the demarcation of boundaries was concluded between Pakistan and China in the year on 2 March 1963 Pak china's boundary line was demarcated during the era of Ayyub Khan This agreement called The Sino-Pakistan Agreement The Sino-Pakistan Agreement is a 1963 document between the governments of Pakistan and China establishing the border between those countries in the disputed Kashmir region. The agreement was signed by: China: Marshal Chen Yi, Plenipotentiary of the Government of the People's Republic of China Pakistan: Z. Ali Bhutto, Plenipotentiary of the Government of Pakistan ND15-10-2023