West Bengal Board Of Secondary Education — DOB conflicts

Address:

North 24 Parganas, West Bengal

accoring to The Calcutta Municiapality corporation Health Department My date of birth is 13/09/1992 (dd/mm/yyyy)
but in my admit card the nWest Bengal Board of Secondary Educatio did a blader mistake in date of birth column i.e Ninthe day of December ninteen hundres ninty two.
as a matter of fact it conflicts with original date of birth.in this regard i reaaly need your help.pls pls tell me what to do now.pls guide me.
my name is gouranga paul
contact no [protected]
[protected]@gmail.com