You can got decant job after completing bsc Agriculture and you can do MSc for improve your chances and do PhD to become scientist/assistant professor or professor in research institutions and universities.
Biotech is also emerging field, a lot to discover, several opportunities to young minds to be the next great scientist. Though Agriculture has some good research scope.
It depends on you that what would you like

Hi,
To compare between BSc biotechnology/agriculture and Pharmacy B.Pharma- M.Pharma.

it also depends upon your particular interest looking at the current scenario and scope in India I would suggest that doing the pharmacy degree is more beneficial right now but in the long run if you are planning to shift abroad then I will suggest you to go with a biotechnology degree if you planning to stay in India then you should do a pharmacy course which is highly reputed and established in Indian market, which has a lot of job prospects and many good colleges also with good placements.

Taking a look at the current scenario, I would suggest that B. Pharma is better than Bsc.Biotech /Agriculture.

As currently there has been a rise in the number of of pharmaceutical companies, so if you feel you have the potential to work in this field for such companies then surely B.  Pharma is the better option.