Some jobs you can pursue are:
Botanical survey
Hospitals
Medical research
Medical laboratories
Food institute
Drug companies
Biotechnology firms
Nurseries
Testing laboratories
Chemical companies
Educational institute

These are good jobs with good sallaries as well

Hello Rahul !

Since , you are graduating from a reputed institute there are many private companies, who will easily give you job , as those companies always want  innovative Ideas and they know that to have highly talented and skilled Post Graduated IITians will be good for them.

Highest package from campus selections of mostly old IIT's usually goes above 20 lacks.

Also , there are many opportunities in government sectors also like ,

1. Research or Scientists
2. Officer Jobs
3. Assistant Professors at India’s Top Most Universities
4. Railway Officer

If you want any detail regarding these jobs , please ask your query in comment section or as another question.

Hope it helps !