Hi Simon, management is a vast degree. In order to understand the modes of admission in management, you will have to specify which course you are talking about. In brief, I will inform you about the undergraduate (UG) and postgraduate (PG) course. 

• UG Course: For UG course, you can appear for IPM Aptitude test for the integrated course in IIM or you can appear for DU JAT for Delhi University. For Sybiosis, you can appear for SET BBA. Likewise, there are other entrance exams too to be qualified to pursue UG course.

• PG Course: For PG, you can appear for entrance tests like CAT, XAT, MAT, CMAT, NMAT, SNAP, TISSNET, and many others to get admission into top B-schools IIMs, Xavier's, Symbiosis, etc. Different colleges accept different scores. Also, the admission is done on the basis of group discussion and personal interview if the candidate has met the specified cutoff.

Thank You!