Q. When did Bihar State introduce the Green Budget for the first time ?

The correct answer is: a) Financial Year 2020-21

Explanation:

Bihar State introduced its Green Budget for the first time in the Financial Year 2020-21. This initiative was officially tabled in the legislative assembly on March 15, 2020, making Bihar the first state in India to present a separate Green Budget aimed at integrating environmental considerations into government spending and promoting ecological sustainability.