The Ganga River enters Bihar from the state of:

Uttar Pradesh
West Bengal
Jharkhand
Nepal

The correct answer is: a) Uttar Pradesh.

The Ganga River enters Bihar from the state of Uttar Pradesh. It enters Bihar at Buxar district. The Ganga River 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 other options are incorrect because:

  • b) West Bengal is the state where the Ganga River exits Bihar.
  • c) Jharkhand is a state that is located between Bihar and Uttar Pradesh.
  • d) Nepal is a country that is located to the north of India.