Indian Himalayas
Himalaya means the House of Snow. The entire Himalayan range of mountains, with majestic peaks and magnificent valleys of incomparable beauty, stretches  over 2500 km bordering five countries (Indai, Nepal, Bhutan, Tibet and Pakistan) . 

In India, the Himalayas mountain region extends all along the northern border of the country in the shape of an arc.

Himalaya has, developed into the plural, Himalayas, because of the many number of mountain ranges. There are the Outer Himalayas, also called the Siwalik Range, the Lesser or Lower Himalayas, the Tethys or Tibetan Himalayas, the Trans-Himalayas and the Great Himalayas, home to Mount Everest.

Nepal and India as the two nations where you can easily experience the magical Himalayas. While Nepal possesses the highest peaks, India boasts of a very long and diverse stretch of high altitude mountain range throughout the northern border of the country.

The Indian Himalayan Region (IHR) dips and dives in and out of the Lesser, Greater, Tethys and Siwalik Ranges that spans eight states of India namely,   & Ladakh,  Himachal Pradesh (& Spiti Valley), Uttarakhand (Kumaon & Garhwal), Sikkim, and Arunachal Pradesh as well as the hill regions of two states -Assam and West Bengal. 

Amazing diversity
The topography varies from arid Tibetan arid high altitude desert, emerald forests, river valleys, mountain villages, alpine meadows and lakes, while the changing social landscape fusion of varied customs and inhabitants of different states present a dazzling kaleidoscope of color & flavour.
It is also a region of fascinating cultural and spiritual heritage, where millions of people from diverse cultures and religions, live alongside each other.
Indian Himalayan areas are probably more diverse than any other mountain areas in the world. The eastern & northern trans Himalayan part is Buddhist, the Central Himalaya part is Hindu and the Kashmir part is Muslim, Arunachal is animist and each area has its own language & distinct culture.

Himalayan Regions in India
Himachal Pradesh