Nanda Devi is the second-highest mountain in India, after Kangchenjunga, and the highest located entirely within the country. Nanda Devi is the 23rd-highest peak in the world. Nanda Devi was considered the highest mountain in the world before computations in 1808 proved Dhaulagiri to be higher. It was also the highest mountain in India until 1975, when Sikā¦Nanda Devi is the second-highest mountain in India, after Kangchenjunga, and the highest located entirely within the country. Nanda Devi is the 23rd-highest peak in the world. Nanda Devi was considered the highest mountain in the world before computations in 1808 proved Dhaulagiri to be higher. It was also the highest mountain in India until 1975, when Sikkim, an independent kingdom until 1948 and a protectorate of India thereafter, became a state of India. It is located in the Chamoli district of Uttarakhand, between the Rishiganga valley on the west and the Goriganga valley on the east.