how should I plan my mocks from september, so that I can give enough mocks for cat , nmat , snap simultaneously

Hi Pallabi Chowdhary, Start taking two mocks in a week for CAT. You can take one mock on a weekday and one on the weekend. SNAP duration is only one hour so you can take two SNAP mocks on weekdays. If you take a CAT mock on Saturday, you can NMAT mock on Sunday. Hope this helps!