Which of the following pair is not correctly connected?

The correct answer is Lahaul Valley - Assam. Important Points Tons Valley lies in Jaunsar Bawar region, as it emerges from the Himalayas has Haridwar, Uttarakhand on its eastern bank. Pin Valley is a National park of India located in the Spiti Valley in the Lahaul and Spiti district, in the state of Himachal Pradesh. Neora Valley National Park is situated in the Kalimpong district, West Bengal. The Lahaul and Spiti district in the Indian state of Himachal Pradesh consists of the two formerly separate districts of Lahaul and Spiti . The present administrative center is Kyelang in Lahaul. Hence Lahaul Valley - Assam is incorrectly matched.