The correct answer is: Ganges, Gandak, Kosi, Son.
The Ganges is the longest river in India and the third-longest river in Asia. It is a sacred river for Hindus and is also an important source of water for irrigation and drinking water. The Gandak is a tributary of the Ganges and is also an important source of water for irrigation and drinking water. The Kosi is a tributary of the Ganges and is known for its destructive floods. The Son is a tributary of the Ganges and is an important source of water for irrigation and drinking water.
The Brahmaputra is the longest river in India and the ninth-longest river in Asia. It is a major source of water for irrigation and drinking water in the states of Assam, Meghalaya, and Arunachal Pradesh. The Narmada is a river in central India. It is the fifth-longest river in India and the largest west-flowing river in the country. The Tapti is a river in central India. It is the sixth-longest river in India and the largest south-flowing river in the country.
The Indus is the longest river in Pakistan and the seventh-longest river in Asia. It is a major source of water for irrigation and drinking water in Pakistan. The Sutlej is a river in northern India and Pakistan. It is a tributary of the Indus River. The Beas is a river in northern India and Pakistan. It is a tributary of the Indus River.
The Krishna is a river in southern India. It is the second-longest river in India and the largest south-flowing river in the country. The Godavari is a river in central India. It is the second-longest river in India and the largest east-flowing river in the country. The Kaveri is a river in southern India. It is the third-longest river in India and the largest south-flowing river in the country.