Delhi University (DU)

You can change both your college and the course as long as admission process is on and your 12th percentage meets up the cut-off percentage (best of 4/3) in the latest cut off list released by the University. Once the admission process is closed you can not change your Course/College . you can still migrate from one college to other, but for that you must have a good academic record through out the semesters.
Please follow the procedure mentioned below to change your college during Delhi University admission.
1.Visit the Delhi University website and withdraw your admission from the previous college where you had applied before. You can find the option on the dashboard after you log in to your account.
2.Before cancelling your admission, please verify if the college you seek admission into has any vacancy for your caste category and if your percentage meets the cut off percentage of the college in the latest list.
3.Download the cancellation form and visit the college with a physical copy of it to receive your documents you had submitted earlier.
4.You might also have to fill an offline cancellation form and fee refund form which can be availed in the college office.
5.Visit your the official website and log in to your account to apply to the college you seek admission in to. Download the application form and get it printed.
6.Carry all your documents along with the new application form to the college immediately while the admission process is still on.
7.Once you've submitted the documents after verification, you'll be asked to pay your fees for that particular college. The link/mail regarding the same will be sent. (Don't worry, the amount you paid to the previous college will be refunded if you filled the refund request form while collecting your documents).
8.The time duration for the fees payment is generally one day. The notification will be sent in the evening on the same day when you apply.