Hi aspirant!
Hope you are doing well!

You haven't mentioned any examination in specific, which admission process are you talking about.
If you are talking about NEET then the dates of Online Registration if from 10th December to 14th December 2020 (3:00 PM) .
Display of Seat Matrix was from 3rd December to 9th December 2020 .
Choice filling is from 11th December to 14th December 2020 (11:59 PM) .
If you talking about some other examination, do tell.
Happy to help.