Science

B.Sc CS is all time better.

Both offer job opportunities but the field is different in both. So, go in the field you are interested in.

Depends on what type of result you want.

Banking aur Railway main stream koi bhi chalta lekin job milne ke liye aapko Entrance Exam clear karna padega jisme Maths hota hain.

Hi Rashmi
If you've ever wanted to combine your interest in pharmaceutical science with your passion for criminal justice, a career as a forensic pharmacist might be the perfect occupation for you. A forensic pharmacist's job responsibilities are slightly different than a forensic scientist's duties because a forensic pharmacist specifically applies the science of drugs to legal matters. Forensic pharmacists spend much of their time researching, testing and analyzing drug-related evidence for lawyers to use in litigation as part of the criminal justice system.

Hi Manvi
No it's not at all compulsory to have biology, if you are from maths background you can pursue B.pharmacy,
After completing your bachelor degree, you have get yourself registered by state pharmacy council of state to which you belong, and then you will be a registered pharmacist
Hope this will help you
All the best
Thanks