Is your father in govt service ?kindly clarify
2) for govt servants OBC-NC for government employee is decided by status in the job not income.
3)Excluding all Class I employees and direct recruits of Class II cadre, all other govt. servants having income greater than 6 lakhs are still eligible for the OBC non creamy layer certificates
3) Rs 6 lakh criterion thus applies only for business class not for salaried govt employees