Hi Tanu, yes, you can if you fall under the following.

Gate Eligibility:

B.E./ B.Tech./ B.Pharm.
1. B. Arch
2. B Sc. (Research)/ B.S.- Bachelors degree in Science (Post-Diploma/ 4 years after 10+2)
M. Sc./ M.A./MCA or equivalent
3. Int. M.E./ M.Tech.
4. Int. M.E./ M.Tech. or Dual Degree(after Diploma or 10+2)
5. Int. M Sc / Int. B.S.-M.S.
6. Professional Society Examinations (equivalent to B.E./ B.Tech./ B.Arch.)

You can write GATE in CS and then take biotech later.

Graduate Aptitude Test in Engineering

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