Assertion (A): River Kalinadi is an east-flowing river in the southern part of India. 1. Assertion (A): River Kalinadi is an east-flowing river in the southern part of India. 2. Reason(R): The Deccan Plateau is higher along its western edge and gently slopes towards the bay of Bengal in the east. Reason(R): The Deccan Plateau is higher along its western edge and gently slopes towards the bay of Bengal in the east.

1. Assertion (A) is false. The River Kalinadi (also known as Kali river) originates in the Western Ghats in Karnataka and is a west-flowing river, draining into the Arabian Sea, not an east-flowing river in the southern part of India. 2. Reason (R) is true. The Deccan Plateau generally is higher along its western edge (the Western Ghats) and gently slopes towards the Bay of Bengal in the east. This explains why major rivers of the peninsula (Godavari, Krishna, Kaveri) flow eastwards. 3. Since A is false and R is true, the correct option is (D).