Registration Procedure Querry

Could anyone help me when to register for different B Schools in order to get admission based on CAT and other MBA exams score? Is it after the CAT exam or before it and what all are the different B School for which I can apply based on my score i…

Could anyone help me when to register for different B Schools in order to get admission based on CAT and other MBA exams score? Is it after the CAT exam or before it and what all are the different B School for which I can apply based on my score in exam?