Hello,

The eligibility criteria of Indian Forest Service is passed bachelor's degree in agriculture, forestry, engineering or graduation with at least one of the subject such as botany, zoology, physics, chemistry, statistics, animal husbandry, geology and mathematics. I feel if you can pursue BTech then go ahead with it, that will be more aligned with your former educational qualifications that is diploma in engineering, and in case of other BSc degree courses you must check out the eligibility criteria of the specific college you're interested to apply for, as various other colleges may have different criteria in terms of specific educational qualifications.