Which is the longest river in Peninsular India?

Which river is the largest tributary of the Ganges?

The second largest river basin of India is -

Which river is the longest in India and flows through the states of Uttarakhand, Uttar Pradesh, Bihar, and West Bengal?

Which peninsular river has a tributary named 'Kabini'?

Which of the following rivers of India is NOT a tributary of Damodar River?