Hey,
BBA or Bachelor of Business Administration is a three year long undergraduate programme. The basic eligibility criteria is to pass 12th from a recognized board with minimum 50 percent marks.
The admission is either through merit based or the performance in the entrance examinations of the respective colleges like CET BBA, SET BBA ,NPAT BBA,DU JAT, AIMA UGAT.  Fee stucture is different for different institutions. However, the fees may vary between 1 lakh to 2.5 lakhs.
Hope this helps.
Good luck.