Explanation:

Recently, the Union Environment Minister inaugurated a unique urban forest at the office of the Comptroller and Auditor General of India (CAG) in New Delhi. The urban forest with 12000 seedlings of 59 indigenous species will act as a role model for offices in Delhi. This would be a dense urban forest with multiple tree layers including 12000 saplings of 59 indigenous species in another year or so. The Miyawaki method of forest creation is employed which could help in reducing the temperature by as much as 14 degree & increase the moisture by more than 40%. Hence option 3rd is correct.