Hello aspirant,

IN CTET exam, if you have filled your roll number correctly but wrongly bubbled in the OMR sheet, chances re there your paper may get disqualified as you have done the mistake. Whether the officials will consider regarding this matter or not, that totally remains on their decision only. If they consider your paper, then it's well and good and if not, you may get disqualified.

Hope, this helps you. Hope for the good luck!