Hello Student

CET common entrance test which is taken for admission in MBBS, BDS or engineering courses in the national level which is offered twice a year. Check your registered email and mobile set in which you will find a link about it. After login you may download it then you may get your lost registration number. In case if it is not act then you have to made a request application in the email ID of CET. And for a few days to get it's answer. You will get the positive answer on which you will get you the lost registration number of CET

Hope this helps.