Dear uma,
We would have been able to guide you better if you had mentioned to us about the subjects you had in B.Sc. There are lot of openings after B.Sc but it basically depends on the combinations of subjects you would like to choose for specialization at Post graduation level. If your interest is in science then you can continue doing M.Sc in the subjects relevant to your graduation. Some other courses you can consider are in environmental sciences, pharmaceutical management, biochemistry, hospital/healthcare management, clinical research, academics, law, social work, mass media etc