After online registration, you have to fill in the choices of colleges/courses in order of your preference and lock it before server time. Once the choice is filled in, it can be modified before locking. If a candidate does not lock the choice submitted by him/her, it will be automatically locked as per schedule/ Server time. If you don’t fill in choices even after registered in the MCC portal, you will not be allotted any seat. Candidates can download/print out the locked choices for future reference.