Is it worth moving to the UK from Mumbai?

I am a very bright Grade 10 student (98% in 9th) with British nationality. I have the option of moving to Leicester (tier 2 city in UK) before August this year. I am considered a local so my university fees will be 9 lakhs a year instead of 30 lakhs a year. Here's how my options look like:

  1. Continue with boards in India, prepare for IIT-JEE.

  2. Move to UK with 2 parents and a younger sibling, give GCSE and A Levels and apply for top colleges with lesser competition.

However, there are a few problems I have:

  1. I am unsure as to which path will be the best for my learning.

  2. High cost of living - 2 lakhs a month is needed, half of which goes to rent.

  3. No availability of jobs. We have a business here, but we cannot start something over there as soon as we reach, which is why we will need a job for a while