The correct answer is (a) Telangana.
Telangana has launched a drone-based afforestation project, named ‘Hara Bhara’. The project aims to plant 2.5 crore saplings in 100 days. The drones will be used to plant saplings in remote and inaccessible areas. The project is being implemented by the Telangana Forest Department.
The other options are incorrect.
(b) Gujarat has launched a project called ‘Van Mahotsav’ to promote afforestation.
(c) Assam has launched a project called ‘Green Assam Mission’ to promote afforestation.
(d) Punjab has launched a project called ‘Punjab Green Revolution’ to promote afforestation.