Hi vineetha! Getting government seat for bds college for the marks is a bit difficult.but you can also have a private college in your list.just go through the previous cut off for colleges under the category basis.you do have a lot of good colleges and also just have a previous year cut off for government colleges under bds doe a preference.the main reason and difficulty is as the cut off for college are varying drastically they are being to be under preference.all the best!!