With its steep ridges and faces, Nilkantha resisted seven climbing attempts, beginning with Frank Smythe in 1937.

The peak was purportedly first climbed on 13 June 1961, by an expedition led by Col.
Narinder Kumar, with Shri O.P. Sharma and Sherpas Lakpa Giyalbu and Phurba Lobsang reaching the summit.
 They placed their base camp on the Satopanth Glacier and ascended via the north face.
Jagdish Nanavati, Honorary Secretary of the Himalayan Club, Bombay, studied the ascent and came to the conclusion that the expedition had gravely underestimated the route and faltered far below the summit in bad weather.
Nevertheless, a committee of the Indian Mountaineering Foundation ratified the ascent late in 1963, though they recommended the expedition to be repeated the next year to confirm the terrain and timing.

The generally accepted first ascent was made on 3 June 1974 by Sonam Pulzor, Kanhiya Lal, Dilip Singh, and Nima Dorje of the Indo-Tibetan Border Police.
The expedition was led by S. P. Chamoli.
After unsuccessfully attempting the west ridge, they reached the summit via the north face, making three camps above base camp.

The second ascent of Nilkantha was only in 1993 by an international team under Col.
H.S. Chauhan via the north-east ridge.
No fewer than 32 climbers made the summit between 31 May and 2 June.

In 2000, five British climbers led by Martin Moran made the third ascent and the first ascent over the west ridge.
In November 2001, the Slovenian climbers Marko Prezelj and Matic Jost repeated this route.
In 2007, the Himalayan Club Calcutta claimed an ascent via the west ridge as well, but their climb was later shown to have stopped about 150 metres below the highest point on the mountain.
The Indian Mountaineering Foundation (IMF) has not yet formally rejected the claim.

The leader of the 2007 Himalayan Club Kolkata Section AVM (Retd) Apurva Bhattacharya had made detailed technical representation on their claimed ascent up to the Summit ridge of Nilkanth.
An Internal Authentication committee was set us by IMF to study the contention 
of the 2007 team.
On detailed analysis, the authentication committee concluded that the 2007 team had indeed reached the summit ridge of Nilkanth and deemed this expedition to be successful.
Communication to this end was made by IMF to the Expedition leader vide letter dated 6 August 2014.
With its steep ridges and faces, Nilkantha resisted seven climbing attempts, beginning with Frank Smythe in 1937.
The peak was purportedly first climbed on 13 June 1961, by an expedition led by Col. Narinder Kumar, with Shri O.P. Sharma and Sherpas Lakpa Giyalbu and Phurba Lobsang reaching the summit.  They placed their base camp on the Satopanth Glacier and ascended via the north face. Jagdish Nanavati, Honorary Secretary of the Himalayan Club, Bombay, studied the ascent and came to the conclusion that the expedition had gravely underestimated the route and faltered far below the summit in bad weather. Nevertheless, a committee of the Indian Mountaineering Foundation ratified the ascent late in 1963, though they recommended the expedition to be repeated the next year to confirm the terrain and timing.
The generally accepted first ascent was made on 3 June 1974 by Sonam Pulzor, Kanhiya Lal, Dilip Singh, and Nima Dorje of the Indo-Tibetan Border Police. The expedition was led by S. P. Chamoli. After unsuccessfully attempting the west ridge, they reached the summit via the north face, making three camps above base camp.
The second ascent of Nilkantha was only in 1993 by an international team under Col. H.S. Chauhan via the north-east ridge. No fewer than 32 climbers made the summit between 31 May and 2 June.
In 2000, five British climbers led by Martin Moran made the third ascent and the first ascent over the west ridge. In November 2001, the Slovenian climbers Marko Prezelj and Matic Jost repeated this route. In 2007, the Himalayan Club Calcutta claimed an ascent via the west ridge as well, but their climb was later shown to have stopped about 150 metres below the highest point on the mountain. The Indian Mountaineering Foundation (IMF) has not yet formally rejected the claim.
The leader of the 2007 Himalayan Club Kolkata Section AVM (Retd) Apurva Bhattacharya had made detailed technical representation on their claimed ascent up to the Summit ridge of Nilkanth. An Internal Authentication committee was set us by IMF to study the contention 
of the 2007 team. On detailed analysis, the authentication committee concluded that the 2007 team had indeed reached the summit ridge of Nilkanth and deemed this expedition to be successful. Communication to this end was made by IMF to the Expedition leader vide letter dated 6 August 2014.
Nilkantha (mountain)