What entrance exam do I have to take to get admission into BBA?

BBA is a three year undergraduate program opted by students after their 12th. 

Some colleges select students for their BBA program on the basis of merit (10th and 12th result). Most of these colleges require at least 50% marks to apply for their BBA program. 

The IIMs conduct IPMAT to admit students for their BBA degree. There are other colleges as well which intake students for BBA on the basis of a written entrance exam. The exam pattern varies from one college to another.

Additionally, a college may conduct GD and PI rounds as part of its admission process.

Make a list of your desired business schools and visit their official websites to find out the admission criteria of each. Accordingly, prepare for the entrance exams, if any.