incorrect father name in ssc

my father name appeared in ssc mark list is rajendra where the correct name is rajendran. i had completed degree and in all the study related certificates father name appeared as rajendra. and in all my id proof such as pan, voter etc father name appeared as rajendran. now I want change my father's name in all certificates as rajendran.what i should do now to change the fathers name.is gazette is enough or any other. and what is the procedure for getting gazette in andhra pradesh.