Dr. Mandana is a leading consultant in cardiothoracic and vascular surgery and has performed numerous critical and complex cardiothoracic and vascular surgeries. Dr. Mandana performed the first successful heart transplant surgery in eastern India on 21 May 2018, this operation was done at Fortis Anandapur, Kolkata. He completed his MS in General Surgery from S.N. Medical College, Rajasthan University and MCh (Cardiovascular & Thoracic Surgery) from Kasturaba Medical College & Hospital, Manipal. He completed a fellowship of European Board of Cardiothoracic Surgeons from University Hospital of Wales, Cardiff, United Kingdom (2000). He is currently full-time director of cardiac surgery at Fortis Hospital, Anandapur, Kolkata.