Hello Aspirant ;

Yes,  of course there are numerous of entrance exams conducted for the intake in B. Sc Biotechnology. The list of the following are as; 

•  AIIMS Biotechnology Entrance Test
•   JNU Combined Biotechnology Entrance Examination 
• CBEEE ( Combined Biotechnology Entrance Examination ) 
• DU Biotechnology Entrance Examination. 

These are the entrance exam you must be in. 

Hope it helps. 

Thanks.