Which one of the following river valleys of India is under the influence of intensive gully erosion?

Which one of the following east flowing rivers of India has rift valley due to down warping?

Which one of the following is a west-flowing river?

Which of the following rivers is famous for its fault valley drainage in India?

Which of the following rivers of India is older than the Himalayas?

Which one of the following rivers is NOT the part of Indian Ganga river basin?