hiiii

if you completed your class 12th then you have so many courses in India which you can do but it also depends on your interest like what would you like the kost to study.

but as i suggest you that you can go for

Higher education lecturer.

Microbiologist.

Nature conservation officer.

Pharmacologist.

Research scientist (life sciences)

Research scientist (medical)

Secondary school teacher.

Soil scientist.

Engineering

Radiographic

you can for other fields like statistics,hotel management,design etc. depending on what you opt for in your graduation.

hope this is helpful

best of luck for your future.