Since you had completed arts in plus two, you can join any degree course.
The best choice is choose B.A History.
In the mean time you can prepare for IAS.
Try to read all the newspapers and hear the TV news.
Develop your interest in General knowledge.
Otherwise, You can study B.Com or B.Com(CA) in regular and you can prepare for the CA exam which is conducted for Auditors.
A Chartered accountant is specialised in accounting,auditing and taxation.
The services of a CA is required in money matters even in a small business .
So the demand for auditors is increasing nowadays.
You can choose any option... All the very best for your carrier
Take care of your minutes then Hours will take care of themselves...