Previous Image India’s Best Cardiologist Padma Shri Prof. Dr. D.S Gambhir discusses ways to Halt Heart Attacks on NDTV 24X7. India’s Best Cardiologist Padma Shri Prof. Dr. D.S Gambhir discusses ways to Halt Heart Attacks on NDTV 24X7. India’s Best Cardiologist Padma Shri Prof. Dr. D.S Gambhir discusses ways to Halt Heart Attacks on NDTV 24X7.