There is no need to register for the spot round as the the spot round is conducted only if the seats are left after the previous round of the counselling. You can login using the id and password and then you can edit the choices filled and the seat allottment will be declared by the july 18 and the physical reporting at the allotted institute afterwards. Refer the link below to know more about the JAC delhi counselling and the admissions. Also thee date for the spot round has been expired so keep check the official website of the JAC for more information.

jacdelhi.nic.in