Dear Annesha, 

BSc in forestry is a 4 year undergraduate course. College of forestry Sirsi is a very renowned college. It does not have any certain cutoff or ranking. The basic or main eligibility criteria needed for studying forestry is 10+2 with science stream and 60% aggregate. For more information click on this link..

https://www.careers360.com/colleges/college-of-forestry-sirsi

Hope This helps. Good wishes!