1963 Sino-Pakistan Boundary Agreement and the Shaksgam Valley
In March 1963, Pakistan signed a boundary agreement with China under which it ceded roughly 5,180 sq km of the Shaksgam Valley (part of the princely state of Jammu and Kashmir at accession, and hence part of India under India's constitutional position) to China. India has never recognised this transfer, holding that Pakistan had no legal title to cede territory it did not own. The agreement itself contained a clause stating the boundary was provisional, pending final resolution of the Kashmir dispute.
- Signed 2 March 1963 between China and Pakistan.
- India's consistent position: the cession is illegal because Jammu and Kashmir (including Gilgit-Baltistan and the Shaksgam tract) acceded to India in 1947 under the Instrument of Accession.
- This agreement is why China is treated by India as a direct party to the Kashmir dispute, alongside occupying Aksai Chin unilaterally on the eastern side.
● Tracked since July 24, 2026 · last seen September 17, 2026 · updates as the daily brief publishes
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