Dr. Krishna Iyer is one of India's Top ranking paediatric cardiac surgeons, renowned for his clinical expertise and wide ranging involvement with the cardiac care for children in India and other developing countries who come for his consult. Dr. Iyer, the Best Paediatric Cardiac Surgeon in India has initiated the first dedicated paediatric cardiac care program in Northern India that is a pioneering initiative, at Escorts Heart Institute Research Centre (now Fortis-Escorts Heart Institute) in 1995. Under his guidance, a paediatric cardiac program has become the standard for cardiac care for children in India and its South East Asian neighbours. Dr. K S Iyer Fortis Escorts Hospital Delhi has operated on more than 10,000 babies, infant children and adults with congenital heart diseases, including various procedures like double switch operation TAPVC repairs, arterial switch procedure, corrections for tetralogy of Fallot, Fontan and Fontan type procedures, Truncus, DORV, etc.