Answer : 1. "किशन बाग "
Explanation :

1. Kishan Bagh is the first desert park of Jaipur.

2. This park is one of the huge open spaces spread over 30 acres within the city limits of Jaipur.

3. This is the first desert park of Jaipur built at the foothills of Nahargarh Fort.

4. The recreated landscape of Kishan Bagh idealizes the desert ecology.