Explanation:

Pair 1 is not correctly matched: Namcha Barwa or Namchabarwa is a mountain peak lying in Tibet in the region of Pemako. It is the easternmost section of the Himalaya in southeastern Tibet and northeastern India. The Garhwal Himalayas are mountain ranges located in the Indian state of Uttarakhand.

Pair 2 is correctly matched: Nanda Devi is the secondhighest mountain in India, after Kangchenjunga. It is situated in the Chamoli district of Uttarakhand. Kumaun Himalayas, west-central section of the Himalayas in northern India, extends 200 miles (320 km) from the Sutlej River east to the Kali River. It rises to 7,817 metres at Nanda Devi, the range’s highest peak, and to 7,756 metres at Kamet, near the Chinese border.

Pair 3 is not correctly matched: The Nokrek Peak is located in the northeast of India on the Tura Range, which forms part of the Meghalaya Plateau. The entire area is mountainous and Nokrek is the highest peak of the Garo hills, rising up 1,412 metres.