Question

the formation of Northern plain in India is result of extensive​

Answer 1

Answer:

The Northern Plain was formed by the deposits brought in by the three major rivers and their tributaries.

1. The Indus 

2. The Ganga 

3. The Brahmaputra  

Alluvium was deposited at the foothills of the Himalayas for millions of years. These deposits are now the fertile Northern Plains.

Explanation:

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Answer 2

The Himalayan uplift out of the Tethys Sea and subsidence of the northernflank of the peninsular plateau resulted in the formation of a large basin. ... Aflat land of extensive alluvial deposits led to the formation of the northern plains of India.