Hello aspirant,
If you are planning to become a Chartered Accountant (CA) and enjoy mathematics, pursuing a Bachelor's degree in Statistics can be a good choice.
A degree in Statistics can be beneficial, especially if you enjoy mathematics, a B.Com or B.Com (Hons.) would be the most straightforward and directly relevant path for pursuing CA. It aligns closely with the CA curriculum and provides a solid grounding in accounting principles. However, if you are particularly passionate about mathematics and statistics, you can still pursue Statistics while supplementing your education with accounting courses to prepare for the CA exams.

I hope this information helps.