What are the course requirements for a Post Study Work Visa UK?

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. 

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. 

UK's Skilled Worker Visa's fee is not refunded upon its grant and usage. The Skilled Worker Visa in the UK is granted for a minimum of 3 years once you start using it, its fee along with the IHS fee become non-refundable.
However, if you work in healthcare roles, then, you might get an automatic IHS refund for working about 6+ months or if your visa was shorter than applied for. 

Since applicants need to pay for a minimum of three years when applying for a Skilled Worker Visa in the UK, applicants with a job offer with lesser in length than that keep looking for a UK work visa that's valid for only 2 years. 

For that reason, one can apply for a "India Young Professionals Scheme visa". This visa allows Indians from 18 to 30 years old to work in the UK for 2 years. The only conditions for getting this visa include- 

• you must have a minimum saving of £2,530
• you must get selected in the India Young Professionals Scheme ballot 

For UG students, a BSc (Hons) in Computer Science from the Uni of Greenwich would cost INR 22 Lakhs for full-time students. Part-time students can pursue the same for INR 11.65 Lakhs. An MSc in Computer Science takes around INR 22.85 Lakhs for full-time students. A part-time Master's would cost INR 13.85 Lakhs.