time to bypass the nay-sayers and unhelpful staff, and see the district officer instead. explain your situation and they will find a way to do it. one of my cousins was in your situation and his dob was rectified. but the lower level staff will not help you as most of them are used to just not exploring other avenues. back then, the district officers were called CDOs; i don't know what they are now in the new scheme of things.