evidence: The Trans-Karakoram Tract (Chinese: 喀喇昆仑走廊; pinyin: Kālǎkūnlún zǒuláng), also known as the Shaksgam Tract (Urdu: شکسگام, romanized: Shaksgām), is an area of approximately 5,300 km2 (2,050 sq mi) north of the Karakoram watershed, including the Shaksgam valley. The tract is administered by China as part of its Taxkorgan and Yecheng counties in the Xinjiang Uyghur Autonomous Region. Although the Shaksgam tract was never under the control of Pakistan since 1947, in the 1963 Sino-Pakistan Agreement, Pakistan recognized Chinese sovereignty over the Shaksgam tract, while China recognized Pakistani sovereignty over the Gilgit Agency, and a border based on actual ground positions was recognized as the international border by China and Pakistan. It is claimed by India as part of the Union territory