Brig. (Dr) J.S. Saini started clinical practise in 1965, With Internship in Army. Served in army for 35 years as Reader in Medicine (AFMC), Assistant / associate professor and prof. of Medicine & Endocrinology in army. He was appointed as DM examiner in PGI Chandigarh, AIIMS, SGPGI AND IN NATIONAL BOARD DNB (Endocrinology).