Dob change as per date of birth certificate

Dear All,

I am very new to the forum. I would like to change my DOB in passport as per my original DOB in my birth certificate. While applying my passport I have submitted my SSLC in which my DOB is wrongly mentioned, which is 2 years more than my original. I want my original to be appeared on my passport and I dont want to loose my 2 years service in my career bcozog this. Can any one please help me on this?