“At Rainbow Hospital, Delhi, my daughter received continuous medical supervision and regular therapy sessions throughout our stay. The team monitored her progress closely, and by the end of the treatment, I could see encouraging improvement in her.”

Dr. Narayanan AL
Interventional Cardiologist
- Dr. Narayanan AL is an interventional cardiologist with 40+ years of experience.
- He has special interest in Device Therapy, Percutaneous Coronary Intervention, End Stage Heart Failure Management, Abdominal Aortic Aneurysm, Arrhythmia, Atherosclerosis, Cardiomyopathy, Coronary Artery Disease, Hypertension, Myocardial Infarction and Peripheral Artery Disease.
- He completed MBBS from Stanley Medical College, Chennai, MD from Madras Medical College, Chennai and DM in Cardiology, Madras Medical College, Chennai.
- He is a member of Cardiological Society of India, European Society of Cardiology, Indian Society of Electrocardiology and Indian Medical Association.
- He won Lifetime Achievement Award by Indian Medical Association, 2017.
- Dr. Narayanan has 18 publications in Indian Heart Journal and Texas Heart Institute Journal.
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- Dr. Narayanan AL is an interventional cardiologist with 40+ years of experience.
- He has special interest in Device Therapy, Percutaneous Coronary Intervention, End Stage Heart Failure Management, Abdominal Aortic Aneurysm, Arrhythmia, Atherosclerosis, Cardiomyopathy, Coronary Artery Disease, Hypertension, Myocardial Infarction and Peripheral Artery Disease.
- He completed MBBS from Stanley Medical College, Chennai, MD from Madras Medical College, Chennai and DM in Cardiology, Madras Medical College, Chennai.
- He is a member of Cardiological Society of India, European Society of Cardiology, Indian Society of Electrocardiology and Indian Medical Association.
- He won Lifetime Achievement Award by Indian Medical Association, 2017.
- Dr. Narayanan has 18 publications in Indian Heart Journal and Texas Heart Institute Journal.

Dr Ravishankar L S
Urologist
- Dr Ravishankar L S is a well-known Urologist practicing for more than 34 years.
- He is extensively trained in Genitourinary Surgery, Vascular Surgery, Direct Visual Internal Urethrotomy (DVIU), and many more.
- After completing MBBS in 1986, he pursued MS in General Surgery in 1990.
- He completed his DNB in General Surgery in 1990 followed by DNB in Urology/Genitourinary Surgery in 1992.
- He is a respected member of various organizations including Tamilnadu Medical Council, Association of Surgeons of India (ASI), Indian Medical Association (IMA), Association of Southern Urologists, and TAMILNADU PONDICHERRY ASSOCIATION OF UROLOGISTS.
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- Dr Ravishankar L S is a well-known Urologist practicing for more than 34 years.
- He is extensively trained in Genitourinary Surgery, Vascular Surgery, Direct Visual Internal Urethrotomy (DVIU), and many more.
- After completing MBBS in 1986, he pursued MS in General Surgery in 1990.
- He completed his DNB in General Surgery in 1990 followed by DNB in Urology/Genitourinary Surgery in 1992.
- He is a respected member of various organizations including Tamilnadu Medical Council, Association of Surgeons of India (ASI), Indian Medical Association (IMA), Association of Southern Urologists, and TAMILNADU PONDICHERRY ASSOCIATION OF UROLOGISTS.

Dr Sathyamurthy I
Interventional Cardiologist
- Dr Sathyamurthy I, or Dr. Immaneni Sathyamurthy, is a renowned Interventional Cardiologist. He has 37+ years of experience in the field of Interventional Cardiology.
- He was honored with fourth highest Indian civilian award of Padma Shri; Dr. B C Roy National Award; TANSA Award for Medical Sciences and Best Doctor Award.
- With expertise in interventional cardiology, Dr. Sathyamurthy is member of Tamil Nadu Medical Council.
- He completed his MBBS and MD from Dr. Baba Saheb Ambedkar Marathwada University; DM from University of Delhi; Fellow, American College of Cardiology (FACC), USA; Honorary Fellow of the Royal College of Physicians (FRCP), Edinburgh; Honorary Fellow of the Royal College of Physicians (FRCP), Glasgow and DSc. (Honoris Causa) Dr. M G R Medical University.
- He has more than 230 publications under his name and some of these publications have been prescribed as text for medical courses.
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- Dr Sathyamurthy I, or Dr. Immaneni Sathyamurthy, is a renowned Interventional Cardiologist. He has 37+ years of experience in the field of Interventional Cardiology.
- He was honored with fourth highest Indian civilian award of Padma Shri; Dr. B C Roy National Award; TANSA Award for Medical Sciences and Best Doctor Award.
- With expertise in interventional cardiology, Dr. Sathyamurthy is member of Tamil Nadu Medical Council.
- He completed his MBBS and MD from Dr. Baba Saheb Ambedkar Marathwada University; DM from University of Delhi; Fellow, American College of Cardiology (FACC), USA; Honorary Fellow of the Royal College of Physicians (FRCP), Edinburgh; Honorary Fellow of the Royal College of Physicians (FRCP), Glasgow and DSc. (Honoris Causa) Dr. M G R Medical University.
- He has more than 230 publications under his name and some of these publications have been prescribed as text for medical courses.

Dr. N. Kathiresan
Surgical Oncologist
- Dr. N. Kathiresan is a renowned Surgical Oncologist with 24+ years of experience.
- He holds a special interest in Surgical Oncology, Limb salvage surgeries, Bone and Soft Tissue Sarcomas and Neobladder reconstruction, Medical research, and Cancer treatment.
- After completing medical school, he pursued MS followed by DNB.
- He has also achieved membership from the Royal College of Surgeons, UK.
- He is actively associated with various organizations including the Association of Surgeons of India (ASI), Indian Association of Surgical Oncology (IASO), Indian Society of Oncology (ISO), and Indian Musculoskeletal Oncology Society ( IMSOS).
- He has over 18 papers and publications in national and international journals.
- He has been honored with various awards and achievements.
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- Dr. N. Kathiresan is a renowned Surgical Oncologist with 24+ years of experience.
- He holds a special interest in Surgical Oncology, Limb salvage surgeries, Bone and Soft Tissue Sarcomas and Neobladder reconstruction, Medical research, and Cancer treatment.
- After completing medical school, he pursued MS followed by DNB.
- He has also achieved membership from the Royal College of Surgeons, UK.
- He is actively associated with various organizations including the Association of Surgeons of India (ASI), Indian Association of Surgical Oncology (IASO), Indian Society of Oncology (ISO), and Indian Musculoskeletal Oncology Society ( IMSOS).
- He has over 18 papers and publications in national and international journals.
- He has been honored with various awards and achievements.
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Dr Ajit Pai
Surgical Oncologist
- With over 17 years of experience, Dr Ajit Pai is a well known Surgical Oncologist and Robotic Surgeon at the Apollo Hospitals in Chennai.
- His major areas of expertise are sphincter-preservation for low rectal cancer and radical oesophageal cancer surgical treatment by robotic approaches.
- He has a rich experience in the surgical management of advanced ovarian, gastric and colorectal cancers, including the use of cytoreductive surgery, heated intraoperative chemotherapy (HIPEC), and Pressurised Intraperitoneal Aerosol Chemotherapy (PIPAC).
- He has earned his Fellowship in Advanced Laparoscopic and Robotic Surgery, Gastrointestinal, Colon and Rectal Surgery from the University of Illinois, Chicago; USA.
- He is also a General Surgeon certified by the Medical Council of India and NBE.
- He is a member of the Association of Surgeons of India, International Hepato Pacreatico Billary Association 1HPBA, the Royal College of Surgeon of Edinburgh, UK.
- He has published a plethora of his works in peer-reviewed international journals, presented at international conferences, and has authored several book chapters.
- Besides English and Hindi, Dr Pai speaks 4 other Indian languages.
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- With over 17 years of experience, Dr Ajit Pai is a well known Surgical Oncologist and Robotic Surgeon at the Apollo Hospitals in Chennai.
- His major areas of expertise are sphincter-preservation for low rectal cancer and radical oesophageal cancer surgical treatment by robotic approaches.
- He has a rich experience in the surgical management of advanced ovarian, gastric and colorectal cancers, including the use of cytoreductive surgery, heated intraoperative chemotherapy (HIPEC), and Pressurised Intraperitoneal Aerosol Chemotherapy (PIPAC).
- He has earned his Fellowship in Advanced Laparoscopic and Robotic Surgery, Gastrointestinal, Colon and Rectal Surgery from the University of Illinois, Chicago; USA.
- He is also a General Surgeon certified by the Medical Council of India and NBE.
- He is a member of the Association of Surgeons of India, International Hepato Pacreatico Billary Association 1HPBA, the Royal College of Surgeon of Edinburgh, UK.
- He has published a plethora of his works in peer-reviewed international journals, presented at international conferences, and has authored several book chapters.
- Besides English and Hindi, Dr Pai speaks 4 other Indian languages.

- Dr Puneet Dargan is one of the renowned Surgeons in Chennai specialising in Gastroenterology, Liver Transplant & HBP Surgery.
- With 18 years of experience, he also specialises in advanced surgical Gastroenterology.
- He completed his Masters in Liver Transplant & HPB Surgery from the Henri Bismuth Hepatobiliary Institute, France. He also received a European Diploma in HPB Oncosurgery from Paul Brousse Hospital, Paris, France.
- He has vast experience working in different reputed hospitals around India gaining proficient skills and knowledge in his fields of expertise.
- He is a member of the Association of the Surgeons of India and the Indian Association of Surgical Gastroenterology.
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- Dr Puneet Dargan is one of the renowned Surgeons in Chennai specialising in Gastroenterology, Liver Transplant & HBP Surgery.
- With 18 years of experience, he also specialises in advanced surgical Gastroenterology.
- He completed his Masters in Liver Transplant & HPB Surgery from the Henri Bismuth Hepatobiliary Institute, France. He also received a European Diploma in HPB Oncosurgery from Paul Brousse Hospital, Paris, France.
- He has vast experience working in different reputed hospitals around India gaining proficient skills and knowledge in his fields of expertise.
- He is a member of the Association of the Surgeons of India and the Indian Association of Surgical Gastroenterology.

Dr Raj Kanna
Orthopaedic and Joint Replacement SurgeonDr. Raj Kanna is a highly distinguished Orthopaedic and Knee Surgeon, a pioneer in the field of robotic and computer-assisted knee replacement. With over 20 years of dedicated experience, he has provided revolutionary surgical solutions, offering renewed mobility and restoring active lifestyles for patients suffering from severe knee arthritis and complex sports injuries.
Why Choose Dr. Kanna?
- Pioneer in Robotic & Computer-Assisted Knee Replacement: With over 20 years of experience, Dr. Kanna is a leader in using robotic and computer navigation technology for both total and partial knee replacements.
- Specialised Expertise in Advanced Sports Medicine & Ligament Reconstruction: He utilises his advanced Anatomical ACL Reconstruction key-hole technique to restore complete knee function and a natural feel to the joint. He has brought light back to the careers of elite athletes who had lost hope.
- Comprehensive Surgical Care and Rapid Recovery: Dr. Kanna is an expert in utilising the highest quality implants, multimodal pain management, and a rapid rehabilitation program. This allows patients, even those undergoing bilateral knee replacements, to mobilise as early as the same day.
- Academic Leader with Elite International Training: He completed his MS from Kasturba Medical College and pursued a Fellowship in Computer Assisted Joint Replacement in Mumbai and an Overseas Knee Fellowship at Southampton General Hospital, UK.
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Dr. Raj Kanna is a highly distinguished Orthopaedic and Knee Surgeon, a pioneer in the field of robotic and computer-assisted knee replacement. With over 20 years of dedicated experience, he has provided revolutionary surgical solutions, offering renewed mobility and restoring active lifestyles for patients suffering from severe knee arthritis and complex sports injuries.
Why Choose Dr. Kanna?
- Pioneer in Robotic & Computer-Assisted Knee Replacement: With over 20 years of experience, Dr. Kanna is a leader in using robotic and computer navigation technology for both total and partial knee replacements.
- Specialised Expertise in Advanced Sports Medicine & Ligament Reconstruction: He utilises his advanced Anatomical ACL Reconstruction key-hole technique to restore complete knee function and a natural feel to the joint. He has brought light back to the careers of elite athletes who had lost hope.
- Comprehensive Surgical Care and Rapid Recovery: Dr. Kanna is an expert in utilising the highest quality implants, multimodal pain management, and a rapid rehabilitation program. This allows patients, even those undergoing bilateral knee replacements, to mobilise as early as the same day.
- Academic Leader with Elite International Training: He completed his MS from Kasturba Medical College and pursued a Fellowship in Computer Assisted Joint Replacement in Mumbai and an Overseas Knee Fellowship at Southampton General Hospital, UK.

Dr Sripriya Rajan
Surgical Oncologist
- Dr Sripriya Rajan is a well-known Surgical Oncologist practicing for more than 24 years.
- She holds a special interest in Trauma Surgery, Minimally Invasive Surgery, Thyroid Surgery, Fistula Surgery, and Endoscopy.
- After completing medical school in 1997, she pursued MS in General Surgery in 2001.
- She is a DNB qualified in General Surgery and Surgical Oncology.
- She is an active member of the Tamil Nadu Medical Council.
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- Dr Sripriya Rajan is a well-known Surgical Oncologist practicing for more than 24 years.
- She holds a special interest in Trauma Surgery, Minimally Invasive Surgery, Thyroid Surgery, Fistula Surgery, and Endoscopy.
- After completing medical school in 1997, she pursued MS in General Surgery in 2001.
- She is a DNB qualified in General Surgery and Surgical Oncology.
- She is an active member of the Tamil Nadu Medical Council.

Leading urologist Dr. R. Jayaganesh has been practicing for more than 35 years and is well-known for his proficiency and dedication to cutting-edge urological techniques. He is the first robot-certified urologist and brings with him a wealth of knowledge and state-of-the-art methods.
Why Choose Dr. R Jayaganesh?
- Extensive Experience & Broad Expertise: With over 35+ years dedicated to urological care, Dr. Jayaganesh provides expert treatment for a wide range of conditions including Urinary Tract Infections (UTIs), Pediatric Urology issues, Prostate Laser Surgery needs, and complex Genitourinary conditions.
- Pioneer in Robotic Surgery: Dr. Jayaganesh pioneered the establishment of the first advanced Robotic Surgery center in a state government hospital in India (in 2019), revolutionising access to minimally invasive urological care.
- Advanced Techniques & Minimally Invasive Approach: He is a specialist in Minimally Invasive Urology, including Laparoscopy, Prostate Laser Surgery, Andrology, TUIP, Reconstructive Urology, and TURP, ensuring faster recovery and reduced discomfort for patients.
- Comprehensive Urological Care: Dr. Jayaganesh expertly performs a variety of procedures including cystoscopy, lithotripsy, prostatectomy, ureteroscopy, and TURP, providing tailored treatment plans for each individual.
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Leading urologist Dr. R. Jayaganesh has been practicing for more than 35 years and is well-known for his proficiency and dedication to cutting-edge urological techniques. He is the first robot-certified urologist and brings with him a wealth of knowledge and state-of-the-art methods.
Why Choose Dr. R Jayaganesh?
- Extensive Experience & Broad Expertise: With over 35+ years dedicated to urological care, Dr. Jayaganesh provides expert treatment for a wide range of conditions including Urinary Tract Infections (UTIs), Pediatric Urology issues, Prostate Laser Surgery needs, and complex Genitourinary conditions.
- Pioneer in Robotic Surgery: Dr. Jayaganesh pioneered the establishment of the first advanced Robotic Surgery center in a state government hospital in India (in 2019), revolutionising access to minimally invasive urological care.
- Advanced Techniques & Minimally Invasive Approach: He is a specialist in Minimally Invasive Urology, including Laparoscopy, Prostate Laser Surgery, Andrology, TUIP, Reconstructive Urology, and TURP, ensuring faster recovery and reduced discomfort for patients.
- Comprehensive Urological Care: Dr. Jayaganesh expertly performs a variety of procedures including cystoscopy, lithotripsy, prostatectomy, ureteroscopy, and TURP, providing tailored treatment plans for each individual.

Dr. Venkatasubramanian Rangarajan
General Surgeon
- Dr Venkatasubramanian Rangarajan has been practicing as a General Surgeon for +16 years and is a respected name in the medical circles in Chennai.
- He holds professional memberships of the Tamil Nadu Medical Council, the National Academy of Medical Sciences and is a fellow of the National board of Examination – Minimal Access Surgery.
- In 1994, Dr. Rangarajan completed his MBBS from Madras Medical College,DR.MGR Medical University and in 2000, did his MS from Stanely Medical College,DR.MGR Medical University. He then acquired membership of the Royal College of Surgeons.
- He is an expert general surgeon of, lobectomy, appendicectomy, breast/thyroid/ fistula & fissure surgeries and laparoscopic cholecystectomy and hernia.
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- Dr Venkatasubramanian Rangarajan has been practicing as a General Surgeon for +16 years and is a respected name in the medical circles in Chennai.
- He holds professional memberships of the Tamil Nadu Medical Council, the National Academy of Medical Sciences and is a fellow of the National board of Examination – Minimal Access Surgery.
- In 1994, Dr. Rangarajan completed his MBBS from Madras Medical College,DR.MGR Medical University and in 2000, did his MS from Stanely Medical College,DR.MGR Medical University. He then acquired membership of the Royal College of Surgeons.
- He is an expert general surgeon of, lobectomy, appendicectomy, breast/thyroid/ fistula & fissure surgeries and laparoscopic cholecystectomy and hernia.
- Dr. Vidya Devarajan is an eminent General Physician practicing successfully for more than 16 years.
- She holds expertise in Sexually Transmitted Diseases treatment, Tuberculosis Treatment, Foot Infection, etc.
- After completing MBBS in 2005, she pursued DNB in General Medicine in 2010.
- She is an FNB qualified in Infectious Disease.
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- Dr. Vidya Devarajan is an eminent General Physician practicing successfully for more than 16 years.
- She holds expertise in Sexually Transmitted Diseases treatment, Tuberculosis Treatment, Foot Infection, etc.
- After completing MBBS in 2005, she pursued DNB in General Medicine in 2010.
- She is an FNB qualified in Infectious Disease.

Dr. Naveen Narendranath
Paediatric Ophthalmologist
- Dr. Naveen Narendranath is a Pediatric Ophthalmologist, based in Chennai with 15+ years of experience.
- His area of expertise lies in cataract surgery, laser surgery, sutureless vitrectomy, diabetic retinopathy, age-related macular degeneration, glaucoma treatment, eye infections, Squint, etc.
- Dr. Naveen is well-known for his technology-centric treatment plans and has done Fellowship from the prestigious International Council of Ophthalmology (UK).
- Under his credit, there are both national and international publications. He is actively invited as a guest speaker in scientific meetings, CDE's to talk about sutureless vitrectomy.
- He is a member of the All India Ophthalmological Society, Tamilnadu Medical Council, Uveitis Society of India, Vitreo Retina Society of India (VRSI), Indian Medical Association (IMA).
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- Dr. Naveen Narendranath is a Pediatric Ophthalmologist, based in Chennai with 15+ years of experience.
- His area of expertise lies in cataract surgery, laser surgery, sutureless vitrectomy, diabetic retinopathy, age-related macular degeneration, glaucoma treatment, eye infections, Squint, etc.
- Dr. Naveen is well-known for his technology-centric treatment plans and has done Fellowship from the prestigious International Council of Ophthalmology (UK).
- Under his credit, there are both national and international publications. He is actively invited as a guest speaker in scientific meetings, CDE's to talk about sutureless vitrectomy.
- He is a member of the All India Ophthalmological Society, Tamilnadu Medical Council, Uveitis Society of India, Vitreo Retina Society of India (VRSI), Indian Medical Association (IMA).
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