1973 - 1977 MD at Patna Medical College
1977 - 1982 Medical Officer - PSC at Primary Health Centre, Paliganj, Patna
1977 - 1982 Medical Officer - PSC at Primary Health Centre, Paliganj, Patna
1977 - 1982 Medical Officer - PSC at Primary Health Centre Patna
1982 - 1986 Resident Medical Officer at Patna Medical College
1986 - 1992 Admin Medical Officer Paediatrics at Patna Medical College
1992 - 1998 Asst Prof Paediatrics at Patna Medical College
1998 - 2003 Asst Prof Paediatrics at Nalanda Medical College
2003 - 2010 Associare Prof Paediatrics at Nalanda Medical College
2010 - 2014 Prof & Head of Deptt Peadiatrics at Nalanda Medical College