Incorrect Date of birth on my account and admit card

Help me please. I had correctly filled my date of birth which is 18 September 2001 but it is displaying as 18 December 2000 on my account as well as admit card. Please correct it. Also there is no option to fill discrepancy column in the download admit card section so I can’t fill it either

Date of birth mentioned in profile and admit card is wrong . I want to update it to 27/08/2001.Please update it.

Date of birth mentioned in my profile and admit card is wrong . I want to update it to 24/10/2002.Please update it.

Date of birth mentioned in my profile and admit card is wrong . I want to update it to 03/01/1999.Please update it.