Hi Akshat,
For doing Family Business Management, you can do a BBA in it first and then go for an MBA. For admissions, one needs to pass 10+2 from a recognized board and seats are filled according to the candidates' score in different entrance examinations, the most prominent ones being CAT, MAT, SNAP, NMAT and many more. Different colleges accept different entrance exam scores. For a full list of colleges offering this course, please check this link:
https://bschool.careers360.com/colleges/list-of-bba-in-family-business-management-colleges-in-india
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