Accounting & Commerce

I am sharing a link here but I would suggest you to go for regular course if possible. On the same link, you may filter for b.com and bca to for specific city.
https://www.shiksha.com/bba/colleges/bba-bms-bbm-bbs-colleges-in-coimbatore

If you are planning for IAS or such exams, it will be beneficial if you take arts.

Visit their official website www.icai.org and find the best centre in your place.

Commerce is a good option and gives an opportunity to choose an out-of-the-box career option, like one in travel and hospitality, depending on the path and degree you choose. Career options for commerce students are vast and you will always have interesting profiles to work at if you play to your strengths.
Here are some of the job profiles you can look at:
Chartered Accountants, Chartered Financial Analyst, Company Secretary, Loans executive, Human Resource manager, Certified Financial Planner, Economist, Venture capitalist, Agriculture Economics, Accounting, Banking, CWA, Mathematics and Statistics, Stock Broking, CA, CS, Law etc.

Anyone who has completed graduation can opt for operations.

Some schools offer this option. Talk to your Principal about it, and give them valid reasons. Talk to your parents/guardians, and let them talk to school authorities. If the school allows, well and good. Otherwise, you could do it from distance/private, and give +2 exams through Open Board like NIOS (now NOS)