Which among the following area do not falls under the scheduled area for tribal population identified by Himachal Pradesh?

In Himachal Pradesh, the scheduled areas for tribal population are demarcated based on the presence of indigenous tribal communities. The scheduled areas are intended to provide special protections and privileges to these communities. Among the options provided:

Pangi Valley: Falls under the scheduled area. It is inhabited by various tribal groups.

Bharmour: Falls under the scheduled area. It is home to the indigenous Gaddi tribe.

Sirmaur: Does not fall under the scheduled area for tribal population. It is not predominantly inhabited by tribal communities.

Kinnaur: Falls under the scheduled area. It is known for its tribal population, including the Kinnauri and Bhoti tribes.

Therefore, the correct answer is Option C: Sirmaur.