The Ministry of Environment and Forests is the Cadre Controlling Authority for the Indian Forest Service (IFS) and here will get details about service.

Ranks
Grade Union Ministry Designation
Apex Scale Director General of Forests
HAG+ Scale Additional Director General of Forests
Higher Administrative Grade Inspector General of Forests
PB-4 Additional Inspector General of Forests
PB-4 Deputy Inspector General of Forests
PB-4 Director
PB-3 Assistant Inspector General of Forests

Grade State Government Designation
Apex Scale Principal Chief Conservator of Forests
Higher Administrative Grade Additional Principal Chief Conservator of Forests
PB-4 Chief Conservator of Forests
Regional Chief Conservator of Forests
PB-4 Conservator of Forests
PB-3 Deputy Conservator of Forests
Divisional Forest Officer
PB-3 Probationary Officer

Institutes for training
Lal Bahadur Shastri National Academy of Administration in Mussorie.
Indira Gandhi National Forest Academy at Dehradun

Training course is designed to be covered in phases as under
1. Foundation Course

2. Professional Phase I

3. Professional Phase II

4. Convocation Phase