Even for India, we need a visa to visit the place, yet they don't need a visa to visit the UK. Unfair? Yes. Racist against Europeans? No.
utter bullshit you would need at least a general visitor visa to come from india to uk, which costs £83 for application non refundable if turned down
https://www.gov.uk/general-visit-visa
What you can and can’t do
You can study for up to 30 days, as long as it’s not the main reason for your visit.
You can’t:
- take paid or unpaid work
- live in the UK for long periods of time through frequent visits
- marry or register a civil partnership, or give notice of marriage or civil partnership
- get private medical treatment
- get public funds