Chief of Cardiac Surgery, Escorts Hospital and Reserch Centre, Faridabad(2002 - )
Chief of Cardiac Surgery, BM Birla Heart Institute, Kolkata ( !999 -2002)
Former Professor and Chairman, Sanjay Gandhi PGI, Lucknow ( 1987 - 1999 )
S. Registrar, Birmingham Childrens Hospital, Birmingham, UK ( 1992 )
S. Registrar, Wessex Cardiothoracic Centre, Soutampton, UK ( 1991 )
Visting Faculty, Nagoya School of Medicine, Japan ( 1990 )
Visiting Faculty, National Cardivascular Surgeon, Osaka, Japan ( 1989 )
S. Registrar, K. E. M. Hospital, Bombay ( MCh - 1985 )
S. Registrar, GSVM Medical College, Kanpur (1982)
Minimally Invasive Adult Cardiac Surgery ( Valve replacement, CABG)
Minimally Invasive Pediatric Cardiac Surgery
Off-Pump CABG
Arterial ' Y ' grafts for CABG