Narmada valley builds the traditional boundary between North India and South India and has a structural origin.

Explanation:

It is also known as the “Life Line of Gujarat and Madhya Pradesh” because of its numerous contributions to Gujarat and Madhya Pradesh. The Narmada River rises near the Anuppur district on the Amarkantak Plateau. Damodar River in Chota Nagpur Plateau and Tapti are two other rivers that flow through the rift valley.