World-Class Neurosurgery.
Compassionate Care.
Right Here in Kerala.
Cleveland Clinic-level precision. Harvard-trained expertise. Over two decades of surgical excellence — available to you without travelling abroad.
Harvard Medical School 
Cleveland Clinic 
Case Western Reserve 
CMC Vellore 
SCTIMST 
TDMC The surgeon whose techniques are taught across the world
Dr. Biji Bahuleyan is one of India's most internationally accomplished neurosurgeons. After completing his MCh in Neurosurgery from the prestigious Christian Medical College (CMC) Vellore, he pursued three separate fellowships in the United States — at Harvard Medical School, the Cleveland Clinic, and Case Western Reserve University — each focusing on a different subspecialty of neurosurgery.
Over a career spanning more than 25 years, Dr. Bahuleyan has pioneered four world-first surgical techniques, published over 40 peer-reviewed papers, and earned more than 600 citations in the global medical literature. His innovations have been featured on three international journal covers and referenced in the CNS 2020 Guidelines and UpToDate — the world's most widely used clinical decision resource.
Today, as Senior Consultant at Caritas Neuro Sciences, Kottayam, he brings that rare combination of global training and local accessibility to patients across Kerala and beyond.
- MCh Neurosurgery — CMC Vellore
- Fellowship in Neurosurgical Oncology — Cleveland Clinic, USA (2013–2014)
- Fellowship in Functional & Restorative Neurosurgery — Cleveland Clinic, USA (2014–2015)
- Fellowship in Spine Surgery — Brigham & Women's Hospital, Harvard Medical School, USA (2012–2013)
- Fellowship in Minimally Invasive Neurosurgery — Case Western Reserve University, USA (2009–2012)
Subspecialty precision across the full spectrum of neurosurgery
Brain Surgery
Cleveland Clinic Fellowship- Brain Tumours & Skull Base Surgery
- Meningiomas & Gliomas
- Pituitary Tumours
- Cerebrovascular Surgery
- Traumatic Brain Injury
Spine Surgery
25+ Years Experience- Disc Herniation & Decompression
- Spinal Cord Tumours
- Minimally Invasive Spine Surgery
- Spinal Fusion & Fixation
- Cervical & Lumbar Disorders
Epilepsy Surgery
Cleveland Clinic Fellowship- Drug-Resistant Epilepsy
- Temporal Lobe Epilepsy
- Invasive EEG Monitoring
- Vagus Nerve Stimulation
- Hemispherotomy
Minimally Invasive & Endoscopic
Harvard Fellowship- Neuroendoscopic Procedures
- Endoscopic Third Ventriculostomy
- Transnasal Skull Base Surgery
- Keyhole Craniotomy
- Image-Guided Navigation
Pediatric Neurosurgery
Case Western Fellowship- Hydrocephalus & Shunt Surgery
- Craniosynostosis
- Spina Bifida & Neural Tube Defects
- Pediatric Brain Tumours
- Chiari Malformation
Four techniques no one had ever performed — now referenced worldwide
Endoscopic Transventricular Hemispherotomy
First-in-literature minimally invasive endoscopic approach for hemispherotomy in medically intractable epilepsy. Now adopted by epilepsy centres worldwide and referenced in multiple textbooks.
Endoscope-Assisted Hippocampal Depth Electrode Placement
First endoscopic technique for placing depth electrodes in the hippocampus under direct vision, reducing risk of injury to vital structures. Benchmark for modern SEEG trajectories.
Endoscopic Selective Amygdalohippocampectomy
First keyhole approach to the most common epilepsy surgery. Prof. Michael Gaab, pioneer of endoscopic neurosurgery, authored a three-page commentary praising this innovation.
Endoscopic Total Corpus Callosotomy
First endoscopic approach to corpus callosotomy for drop attacks. Cited as prototype in Springer's The Corpus Callosum (2023) and Advances & Technical Standards in Neurosurgery (2024).
What sets this practice apart
Internationally Trained Precision
Three separate US fellowships at Harvard, Cleveland Clinic, and Case Western mean Dr. Bahuleyan operates with techniques refined at the world's leading neurosurgical centres. This isn't theory — it's hands-on training under global pioneers, applied daily for Kerala's patients.
Evidence-Based Decisions
With 40+ peer-reviewed publications and 600+ citations, Dr. Bahuleyan doesn't just follow evidence — he creates it. Every surgical recommendation is grounded in the latest research, much of which he has personally contributed to through his innovations and publications.
Compassionate Communication
Neurosurgery is daunting. Dr. Bahuleyan believes every patient and family deserves clear, unhurried explanations — in a language they understand. He takes the time to discuss diagnosis, options, risks, and expectations so you can make informed decisions with confidence.
Contributions to global neurosurgical knowledge
Common questions about neurosurgical care
When should I see a neurosurgeon?
You should consider seeing a neurosurgeon if you experience persistent or worsening headaches, especially with vision changes; numbness, tingling or weakness in your limbs; chronic neck or back pain that hasn't responded to conservative treatment; seizures or unexplained episodes of loss of consciousness; difficulty with balance or coordination; or if your doctor has identified an abnormality on a brain or spine scan. A neurosurgical consultation doesn't always mean surgery — it means getting an expert opinion on the best path forward.
Why should I choose Dr. Biji Bahuleyan over other neurosurgeons?
Dr. Bahuleyan brings a unique combination of international training and local accessibility. With three separate US fellowships at Harvard Medical School, the Cleveland Clinic, and Case Western Reserve University, he has trained at the very institutions that define global standards in neurosurgery. He has pioneered four world-first surgical techniques, published over 40 papers cited more than 600 times, and his work is referenced in the CNS 2020 Guidelines and UpToDate. This level of research contribution and surgical innovation is exceptionally rare, and he makes it available right here in Kerala at Caritas Hospital, Kottayam.
Can I get a second opinion from Dr. Bahuleyan?
Absolutely. Second opinions are a normal and encouraged part of responsible medical care — especially for neurosurgical conditions where the stakes are high. You can visit in person at Caritas Hospital, Kottayam, or reach out via WhatsApp or email with your reports and scans. Dr. Bahuleyan will review your case thoroughly and provide an honest assessment of your options, including whether surgery is truly necessary.
How do I book an appointment with Dr. Bahuleyan?
The easiest way is to message on WhatsApp at +91 97456 12132. You can also call the Caritas Hospital neurosurgery department at +91 481 2411520 during working hours, or email bijibahuleyan@gmail.com with your details and reports. For urgent cases, WhatsApp is recommended for the fastest response.
What conditions does Dr. Bahuleyan treat?
Dr. Bahuleyan treats the full spectrum of neurosurgical conditions including brain tumours (gliomas, meningiomas, pituitary tumours, skull base tumours), spine conditions (disc herniation, spinal cord tumours, degenerative spine disease), epilepsy (drug-resistant epilepsy, temporal lobe epilepsy), pediatric conditions (hydrocephalus, craniosynostosis, spina bifida, Chiari malformation), cerebrovascular conditions (aneurysms, AVMs), and functional disorders (trigeminal neuralgia, movement disorders). His triple fellowship training means he can offer subspecialty-level expertise across all these areas.
Does Dr. Bahuleyan perform minimally invasive surgery?
Yes — minimally invasive and endoscopic neurosurgery is one of Dr. Bahuleyan's core specialities. He pioneered four world-first endoscopic techniques during his US fellowships. He routinely performs neuroendoscopic procedures, keyhole craniotomies, endoscopic third ventriculostomy, transnasal skull base surgery, and minimally invasive spine surgery. These approaches typically mean smaller incisions, less pain, shorter hospital stays, and faster recovery compared to traditional open surgery.
Where does Dr. Bahuleyan practice?
Dr. Bahuleyan practices at Caritas Hospital (Caritas Neuro Sciences), Thellakom P.O., Kottayam, Kerala 686630. Caritas Hospital is one of Kerala's leading multispecialty hospitals with state-of-the-art neurosurgical facilities including advanced neuro-navigation, intraoperative imaging, and a dedicated neuro-ICU. The hospital is well-connected by road and is approximately 15 minutes from Kottayam railway station.
What should I bring to my first consultation?
Please bring all your medical records, including MRI/CT scan films or CDs (not just reports), any previous surgical records, current medication list, blood reports, and referral letters from other doctors if available. If you have scans on CD, Dr. Bahuleyan will review them on advanced workstations for detailed analysis. If you're seeking a second opinion, bring the original surgeon's notes and recommended treatment plan so he can give you the most informed assessment.