1. Assistant Professor, Department Of Orthopaedics, Calcutta National Medical College And Hospital.
2. Senior Resident, Department Of Orthopaedics, Calcutta National Medical College And Hospital.
3. Professor And Head, Department Of Orthopaedics, Coochbehar Govt.Medical College And Hospital.
4. Professor, Department Of Orthopaedics, Calcutta National Medical College And Hospital.