Which of the following is India’s highest point?

Concept: The “highest point” of a country is the summit of greatest elevation that lies within its territory or on its border. Identifying it has two requirements — the peak must actually be located in (or on the boundary of) the country, and among all such peaks it must have the maximum height. A mountain can be very tall and still not qualify if it sits inside a neighbouring nation.

Application: Compare the four candidates by where they lie and how high they rise:

Everest, though the world’s tallest, is excluded because its summit is not in India. Among the remaining candidates, Kanchenjunga at 8,586 m is taller than both Nanda Devi (~7,816 m) and K1/Masherbrum (~7,821 m), and it lies on India’s Sikkim–Nepal border. Therefore India’s highest point is Kanchenjunga.

Cross-check: The only candidate taller than Kanchenjunga is Everest (8,849 m), which is outside India; every other option is below 8,000 m. So among peaks located in India, 8,586 m is the maximum, confirming Kanchenjunga. It is also the world’s third-highest mountain, consistent with this elevation.