Date of birth mismatch

Sir, I am in a. Big problem. My date of birth in birth certificate 27-12-1993 doesn't match with that in other documents (10 th 12th certificate , voter I'd ,license) 27-12-1994. Also I produced an affidavit in school to make birthdate as 27 -12-1994. Please guide me what can I do to get out of this career threatening mistake