Hi Pratham,

I am sorry to inform you that according to the admission rules of BITS, you can apply only for B.Pharma. if you have opted for PCB in BITSAT. Therefore, you won't get a chance for an integrated M.Sc. Biology course under such circumstances. For further information, you can refer to the given link: https://www.bitsadmission.com/fdEligibility.aspx 

Also read their Admission Modality: https://www.bitsadmission.com/Admisison_modality_052018.pdf?2018105

Good Luck!