Am apply in mba in self finance college affiliated in anna university. after the two months they sad u r not eligible. i hv 10+3+2

After the 1 1/2 month they said am not eligible for mba in anna universality, before that they sad i will join in some other college. now my 1 yr is post-bond.am in poor back round. AU need 10+2+3,10+3+3. then why they give a lateral entry in direct 2nd yr in college in arts and science. (DMOP+BCOM)