Dear Deepshikha, if you are checking about AIIMS MBBS registration, there are 2 phases. The first is the Basic registration am sure which you know about. Once you fill in the form, the authorities will let you know if your application is accepted or rejected. This will be notified by January 7th. From the 8th, the correction window opens and will close by the 18th. By the 22nd of January, your final status of the application form will be notified. And the final registration process will start from February 21st until March 12th. The admit card will be available to download by May 15th. This is the process in whole. For more information please use this link: https://medicine.careers360.com/articles/aiims-mbbs-application-form