उत्तर : 4. "जैसलमेर"
व्याख्या :

1. Adani Hybrid Energy Jaisalmer One Limited, a subsidiary of Adani Hybrid Energy, established India's first wind-solar hybrid power plant in the Jaisalmer district of Rajasthan.

2. This plant established in Jaisalmer is the country's first wind and solar hybrid power generation plant.