It all depends upon your interest. BSc is very much different from MBA and you won't be getting any help for MBA from any studies of your BSc. So, there are many specializations in MBA. You have to decide you like which one. All the branches have good scope provided you choose a good college. Some evergreen fields are Marketing, Human Resource, Finance, etc. Business Analytics is also a new but promising specialization of MBA if you think you are good with Maths and Statistics.

Hi Uttam,

The most trending specialization in MBA are HR,Marketting,Finance,IT,Operations. Other than these there are many options. Some of them related to your fields are Healthcare Management, Hospital Management, Environment Management, Biotechnology Management. 

All the best!!