One thing is sure that this subject is scoring...

But you have to cover 3 areas of it .....Management and Marketing part are theoretical ,you can prepare it by self study..

But you might need some guidance for finance part , and you can take guidance from a colleague, BBA or MBA student....If you can find couple of guys for group studies then it would be enough...

Although I have not attempted this subject in any competitive exam but I have done BBA (Hons)....We had covered most of these 3 subjects by 4th semester of our studies...