Dear Punna rao
Kindly check this BADI HRXSS_PER_BEGDA_IN and activate it
below is the IMG for this BADI
Employee self service-->Service specific settings-->Own data->Change Default start date
Ask your technical team to activate this BADI, as this requires access key to activate it. Kindly do this process & let me know the out comes, as this must solve ur issue.
Hope this Info
will be useful
Cheers 
Pradyp