If you did not apply for the mangemnet seat, then need not to worry you can apply anytime for management qout to ge assured seat for your couse. 

To apply seat for managemnet qouta you need to fill the application form for this amd have to pay the mangement fees to get 100% seat their without any elihibilitu critera or whatever your merit score is. You will get seat for your course. So need not to worry kindly visi the college and fill the application form and verify your doccumnets and get your admissiom done. All the best have. A great future ahead.