Hello,
A bridge course is needed to impart the basic knowledge to the students, so that they get a clear idea of the course they are going to pursue. If you want to bursue B.Tech Biotechnology, the requirements are Physics, Chemistry, Math in class 12.
if you haven't pursued this course in class 12, you need a bridge course. if you have, then you don't need it.
Hope it helps
Good luck
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