Hi Aspirant,

Since you have taken science in your 2nd PUC , it's really beneficial for you because now you can take BSc in either of these: forestry / Agriculture / Horticulture / Environmental Science / Zoology / Botany or any other related subject from a recognized university or institution. After that you can give the Indian Forest Service (IFS) Exam which is one of the Civil Services Examination conducted by Union Public Service Commission (UPSC). By taking  above steps you can take up the job in forest department.

For more information regarding Indian forest service (IFS) exam refer the link below,

https://competition.careers360.com/exams/upsc-ifs

Hope this is resourceful to you.

All the best!!!