Can you suggest the best universities for B.Sc economics in London?

The Indian actress who went to the Oxford University is Soha Ali Khan. Soha Ali Khan completed a study in Modern History from the Balliol College of Oxford University

University Oxford is famous for its academic excellence, world-class research, universities & tutorial system. It's one of world's the oldest universities known for its groundbreaking research work like COVID-19 vaccine & conventional teaching style.

The best field after BSc Biotechnology depends on your interests and aspirations. However, top areas include Pharmaceuticals (drug discovery, QA/QC), Clinical Research ( CRA, data management), Bioinformatics, Agricultural Biotech and Environmental Biotech. Students aiming for specialised roles go for a master's degree like M.Sc, M.Tech or MBA in biotechnology or a similar field or the one that adds value to their resume. 

Along with the essential course completion requirements, your application for the Graduate Visa in UK depends on the following aspects of your course as well:

1. the university or your course provider
2. how long did you study in the UK
3. what kind of a course you studied - bachelor's, master's or any doctoral course

No, studying on a Graduate Visa in UK is generally not possible. Students can do so only if their chosen course is not eligible for a student visa in the UK. If you choose a course that is eligible for a student visa then you can apply for the extension of your UK student visa instead. The courses allowed on a Grdauate visa may include professional, recreational or online courses like short courses or skills development that are not covered by a full Student visa.