Hello,

First of all, you need to think about the future and value of the course you want to pursue and choosing Data Science is one of the best options available to secure a decent package and a good job (only with hard work and skills). Yes, you can go with first BCA here and then MS in the UK.

B.Sc is a common degree whereas MS is professional and I come under Masters degree. So, you can easily judge the level. Also, B.Sc will have low fees but the placements are not sure even the job surety is not there Until or unless pursued from a good colleges/university.

MS in Data Science from a foreign university will always have an upper edge in many terms. The placements are sometimes easy because of the higher number of jobs compared to India. And the average package is also very decent.

Hope you like my answer.

Have a nice day!