Northern Mountainous Region

The correct sequence of mountain peaks from east to west is: Kanchenjunga, Everest, Annapurna, Dhaulagiri. Kanchenjunga is the third tallest mountain in the world. Three of the five summits of the Kanchenjunga (main, central, and south) are situated on the boundary of the North Sikkim district in Sikkim, India and the Taplejung District in Nepal. The two other peaks are entirely situated in Taplejung District. Mt. Everest is the tallest mountain in the world above sea surface. The elevation of Mount Everest is 8,848 meters (Now 8848.86 m). The peak is situated in the Himalayas on the border of Nepal and China, which is also known as the Sagarmatha Zone. The Annapurna region is an area in north central Nepal where some of the most popular treks are located. Dhaulagiri Peak is also located in West Central Nepal, west of Annapurna peak.

Patkai Range is originated in the tertiary era. Remaining all ranges/hills are situated in South and Central India. Thus the latest mountain range is Patkai Range.

The Patkai hills are situated on India's north-eastern border with Myanmar. The Indian states along Patkai hills are Assam, Manipur, Meghalaya, Mizoram, and Nagaland. Tripura does not lie along Patkai hills. Mizo hills stretch through Mizoram and Tripura.

Pir Panjal Range is located in Middle Himalaya. It is spread in Himachal Pradesh and Jammu and Kashmir from south cast to north west.

Atal tunnel is across Eastern Pir Panjal range. It connects Manali and Lahaul-Spiti Valley. It is 9.02 km long and was built by Border Roads Organisation (BRO). The tunnel reduces the distance by 46 km between Manali and Leh and the travel time by about 4 to 5 hours. Strategically, it provides better connectivity to the armed forces in reaching Ladakh.

Atal tunnel is across Eastern Pir Panjal range. It connects Manali and Lahaul-Spiti Valley. It is 9.02 km long and was built by Border Roads Organisation (BRO). The tunnel reduces the distance by 46 km between Manali and Leh and the travel time by about 4 to 5 hours. Strategically, it provides better connectivity to the armed forces in reaching Ladakh.

Atal tunnel is across Eastern Pir Panjal range. It connects Manali and Lahaul-Spiti Valley. It is 9.02 km long and was built by Border Roads Organisation (BRO). The tunnel reduces the distance by 46 km between Manali and Leh and the travel time by about 4 to 5 hours. Strategically, it provides better connectivity to the armed forces in reaching Ladakh.

The Kashmir Valley is bounded on the southwest by Pir Panjal Range and on the north-east by Great Himalayan (Himadri) Range.

The Kashmir Valley is bounded on the southwest by Pir Panjal Range and on the north-east by Great Himalayan (Himadri) Range.

Aksai Chin is spread over about 3800 square kilometers in Ladakh region. It is an Indian territory under the occupation of China.