Q1. The Sankosh Hydel Project is a joint venture between __________.
Explanation
The Sankosh Hydel Project is associated with cooperation between India and Bhutan. Bhutan has significant hydropower potential, and India has been a major partner in developing and purchasing power from Bhutanese hydroelectric projects. India and Nepal also cooperate on river and hydropower matters, but that pairing is not the Sankosh project named here. India and China are not the joint-venture pair for this project, and Nepal and Bhutan leave out India, which is the relevant partner in the official key. Hence the retained answer is India and Bhutan.
