can i do cds after graduation in B.sc biotech?

In CDS, for IMA and INA a degree of a recognized university or equivalent is required. Also your age should be within 24 years. Thus makes you eligible.
For Air Force Academy, degree of a recognized University (with Physics and Mathematics at 10+2 level) or Bachelor of Engineering is required.
For Officer's Training Academy-Men, a degree of a recognized University or equivalent is required. Also age must be within 25 years.
You can check the detailed criteria here-
http://competition.careers360.com/articles/cds-eligibility-criteria