Hi yash,

You can do your bachelor's and postgraduadtion in biochemistry which is offered by many institutes in India. After completion of 10+2 from science stream you are eligible to enroll yourself in bachelor degree in Biochemistry. Once you complete your bachelors in biochemistry you can also do your masters in forensic science and work as a forensic scientist and later apply for jobs of forensic department in CBI, IB etc or can even work as a freelancer.

Good Luck