What should I do in Bachelors if I am interested in MBA?

Hello Vignesh, Certain undergraduate courses like BMS and BBA are good foundations for MBA as they include the important concepts and topics which would be covered in greater depth later on during MBA. However, it is not a compulsion to pursue only these degrees but these two are good bases.

There's no specified base degree as such for MBA, as MBA can be pursued post having a Bachelor's degree in any field from a recognised university. However, courses like BMS /BBA have similar learning course like that of an MBA at an undergraduate level.