If you're an exceptional talent in the fields of science, technology, engineering or mathematics (STEM), you could qualify for a UK Tier 1 Exceptional Talent visa. This visa allows scientists, engineers and innovators to come to the UK for up to three years, during which time they can look for permanent residency or apply for another visa. A Tier 1 Exceptional Talent visa costs £300, but if you're earning more than £30,000 per year from your work in the UK then you'll need to pay 20% of your earnings above this threshold as tax. To know more -https://globaltree.in/visa/immigration/eligibility-criteria-uk/