Doctor Profile

Dr. Kulbhushan Singh Dagar Principal Director, Chief Surgeon & Head - Neonatal & Congenital Heart Surgery

Cardio Thoracic & Vascular Surgery
MBBS, MS, M.Ch (Cardio -Thoracic and Vascular Surgery)
Max Hospital, Saket, Delhi, India
31 years of experience
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About Dr. Kulbhushan Singh Dagar

  • Dr. Kulbhushan Singh Dagar, also known as Dr. K S Dagar, is one of the most respected paediatric cardiac surgeons in India, with over 31 years of dedicated experience in saving the lives of newborns, infants, and children with serious heart conditions.
  • He is the Principal Director and Chief Surgeon of Neonatal and Congenital Heart Surgery at Max Super Specialty Hospital, Saket, a top-tier destination for advanced cardiac treatment in India.
  • Dr. Dagar is internationally renowned for performing highly complex congenital heart surgeries in newborns and infants, often operating on babies who are just days old, offering them a new chance at life.
  • His expertise in paediatric valve repair surgeries and delicate cardiopulmonary bypass procedures has brought hope to thousands of families across India, Africa, the Middle East, and the CIS countries.
  • Trained at the prestigious Great Ormond Street Hospital for Children in London, he has gained advanced skills in heart transplantation and extracorporeal life support, setting global benchmarks in surgical excellence.
  • He has held senior positions at India’s top hospitals including Escorts Heart Institute and Lotus Children’s Hospital, where he helped develop specialised paediatric cardiac programs now recognised nationwide.
  • Dr. Dagar received the 1st prize at ISCET for his outstanding work on managing bypass surgery in infants with sickle cell disease, which is an achievement that demonstrates both innovation and compassion.
  • He is a frequent speaker at international forums like the Asia Pacific Paediatric Cardiac Society Congress and has authored numerous publications and textbook chapters to educate future cardiac surgeons.
  • His affiliations with the European Association of Cardio-thoracic Surgeons and The Pediatric Cardiac Society of India highlight his global credibility and commitment to excellence in paediatric heart care.
  • Patients can book appointments with Dr. K S Dagar at Max Hospital, Saket, by contacting our patient care team at +91 9354982727. Our dedicated team ensures complete support, from timely diagnosis to personalized treatment, providing the highest standards of paediatric cardiac care every step of the way.

Education and Training

  • MBBS, S N Medical College & Hospital, Agra University (January 1987)
  • MS (General Surgery), S N Medical College & Hospital, Agra University, (May 1991)
  • M.Ch (Cardio-Thoracic and Vascular Surgery), GB Pant Hospital, University of Delhi, (August 1994)

Awards & Achievements

1st prize at ISCET – Management of Cardiopulmonary bypass in infants with sickle cell disease
Presentation at 5th Congress of Asia Pacific Paediatric Cardiac Society, New Delhi, 2014
Published extensively in national and international publications.
Authored several chapters for medical textbooks.

Area of Expertise

  • Paediatric (PED) Cardiac Surgery
  • Complex Congenital Heart Defects in newborns and Valve Repairs in children

Work Experience

  • Max Super Specialty Hospital, Saket, New Delhi:
  • Chief Surgeon & Director, Pediatric Cardiac Surgery (July 2009 – Present)
  • Lotus Children’s Hospital, Hyderabad:
  • Chief Neonatal & Congenital Heart Surgeon, Pediatric Cardiac Program (Jan 2008 – June 2009)
  • Escorts Heart Institute and Research Centre (EHIRC), New Delhi:
  • Senior Consultant (July 2007 – Jan 2008)
  • Consultant (Dec 2003 – July 2007)
  • Junior Consultant (Jan 2000 – Nov 2003)
  • Attending Cardiac Surgeon (Jan 1996 – Dec 1999)
  • GB Pant Hospital, New Delhi:
  • Senior Registrar, Cardiothoracic & Vascular Surgery (June 1992 – July 1995)
  • Great Ormond Street Hospital for Children, London:
  • Specialist Registrar, where he gained expertise in extracorporeal life support and heart transplant techniques

Professional Memberships

  • The European Association of Cardio-thoracic Surgeons
  • The Pediatric Cardiac Society of India

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