Which two countries are divided by the 'McMohan Line'?

Question

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Correct — A, India and China. The McMahon Line was drawn at the 1914 Simla Convention between British India and Tibet by Sir Henry McMahon, the British Foreign Secretary of India who chaired the talks. It runs along the crest of the eastern Himalaya and forms the boundary of the eastern sector between India (largely coinciding with Arunachal Pradesh) and China/Tibet. China has never accepted it as a legitimate international border, arguing Tibet had no authority to sign such an agreement — a dispute that remains a live flashpoint in India-China relations.

Why the other options are wrong — (b) These two countries share a short border via the narrow Wakhan Corridor, but that boundary was never demarcated by the McMahon Line.  (c) The India-Pakistan boundary was drawn by the Radcliffe Line (1947), not the McMahon Line.  (d) The Pakistan-Afghanistan boundary is the Durand Line (1893), a separate colonial-era boundary unrelated to the McMahon Line.

Concept: The McMahon Line is the boundary line agreed at the 1914 Simla Convention between British India and Tibet, named after Sir Henry McMahon. It defines the eastern sector of the India-China border, running roughly along the Himalayan watershed and largely matching the northern boundary of present-day Arunachal Pradesh. China rejects the line's validity because it holds that Tibet, as part of China, had no independent authority to conclude such a boundary treaty.

State PCS 2021 Q14 — Geography PYQ with Answer

State PCS 2021 Q14 — Geography PYQ with Answer