Explanation:

• Prime Minister Narendra Modi inaugurated the Mangdechhu hydroelectric power plant, one of the major projects under Bhutan's initiative to generate 10,000 MW hydropower by 2020 with the Indian government's support.
• The Rs 4,500-crore hydroelectric plant touted as a Bhutan-India friendship project, is a 720MW run-of-river power plant built on the Mangdechhu River in Trongsa Dzongkhag district of central Bhutan.
• It was developed by the Mangdechhu Hydroelectric Project Authority (MHPA), which was jointly constituted by the Indian and the Bhutanese governments.

option 2 will be correct answer