Hey,
The Forest Research Institute,Dehradun offers M.Sc in Forestry,M.Sc Wood Science and Technology,M.Sc Environment Management and M.Sc  Cellulose and Paper Technology.So you got to decide on the discipline you want to pursue your masters from.Then after qualifying the entrance exam you can pursue the course of your choice.
The basic eligibility criteria to pursue M.Sc in Forestry is 3 years Bachelor's degree in science with atleast one of the subjects namely Botany,Chemistry,Geology,Mathematics,Physics,
Zoology or a Bachelor's degree in Agriculture or Forestry.
For M.Sc in Wood Science and Technology,3 years Bachelor's degree with Physics,Mathematics,Chemistry or B.Sc degree in Forestry.
M.Sc Environment Management requires 3 years Bachelor's degree in any branch of basic or applied Sciences or Bachelor degree in Forestry or Agriculture or BE/B.Tech in Environment Science.
For M.Sc Cellulose and Paper Technology,the eligibility criteria is minimum 50% marks in aggregate in Science with Chemistry as one of the subjects.B.E or B.Tech in Chemical or Mechanical Engineering with minimum 50% aggregate.
So,you are eligible to apply in Forest Research Institute,Dehradun.
Hope this helps.

Hello
Yeah you can apply for Msc in Forest Research institute dehardun for this you should write the entrance exam and after qualifying specific marks you can get in to the institute for Msc
For more information please click on the link below

https://www.google.com/amp/s/www.careers360.com/university/forest-research-institute-dehradun/amp

Good luck