Hello Saksham,

there are various medical entrance entrance examinations which do require pre- registration. Here are the list of such examinations

*NEET

*AIIMS

*JIPMER

*CMC (VIT VELLORE)

*AFMC

*AIPMT

These are the certain kinds of such examinations which require pre registration.....

hope this information was useful to you.....

all the best for your great future...