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India has 247 islands.

Guru Shikhar is the highest peak on the Abu hills.

On the basis of physiography India can be divided into four divisions. They are:

1. Northern mountains. 

2. The Northern Great plains. 

3. The Peninsular Plateau. 

4. The coastal plains and Islands.

The Northern Mountains are the highest mountain ranges in the world. They have highest peaks, deep valleys and gorges, glaciers, passes etc. They act as natural frontiers and prevent foreign invasion, they prevent the cold winds from central Asia. They obstruct the rain bearing winds and this causes heavy rainfall. They are a store house of minerals and birthplace of many rivers and water falls which are used to generate hydro- etectric power.

The Northern Great Plains are in between the Himalayas and the Peninsular Plateau of India. It is formed by the depositional work of three river systems namely the Sutluj, the Ganga and the Brahmaputra. It is the largest alluvial soil tract in the world, extending east to west – a length of 2500 kms. Its average width varies from 240 to 340 kms. It covers an area of about 7 lakh km2. The plain is very flat and the rocks are not exposed on the surface.

Gondwanaland.

Nepales called Mt. Everest as Sagarmatha.

7 Lakhs km2.

Himalaya mountain are Natural.

The lesser Himalaya are also known as Himachal.

The Greater Himalayas are also known as Himadri.