Comprehensive Neurosurgical Practice - Expertise in cranial and spinal neurosurgery, managing complex elective and emergency cases with precision.

Skull Base Neurosurgery - Fellowship trained in advanced skull base procedures with special focus on tumours and vascular lesions.

Endoscopic Spine Surgery - Skilled in minimally invasive and motion preserving techniques for spinal disorders.

Microneurosurgery - Expertise in advanced microsurgical and vascular neurosurgical techniques.

Neurotrauma and Neurocritical Care - Extensive experience in the management of head injuries, neurocritical cases and postoperative neurosurgical care.

Minimal invasive spine surgery and spine stabilization - Proficient in image guided and minimally invasive techniques for complex cranial and spinal conditions.

Special Interests - Skull base tumours, degenerative spinal conditions and craniovertebral junction pathologies.

MBBS - Government Medical College, Kottayam

Diplomate of National Board in Neurosurgery (DNB) - National Board of Examinations, New Delhi

Member of National Academy of Medical Sciences (MNAMS)

Post Doctoral Fellowship in Skull Base Neurosurgery - Christian Medical College, Vellore

Fellowship in Endoscopic Spine Surgery - Mission Spine Foundation, Pune

Advanced Training in Microneurosurgery under Prof Atul Goel - KEM Hospital, Mumbai

Lead Consultant Neurosurgeon and Department Establishment - Dr. KM Cherian Institute of Medical Sciences (KMC Hospital, Chengannur)

Consultant Neurosurgeon -Aster MIMS Hospital, Kottakkal

Fellow in Skull Base Neurosurgery - Christian Medical College, Vellore

Fellow in Microneurosurgery - KEM Hospital, Mumbai

Senior Resident in Neurosurgery (DNB Program) - Indo American Brain and Spine Centre, Vaikom

First Prize in Paper Presentation - Neurological Society of India (Kerala Chapter)

First Prize in Neurosurgical Quiz - Minimal Access Spine Surgery Conference (MASTCON)

Organiser - NeuroCon 2025

Treasurer - Central Travancore Neuroclub

Recognised for leadership and contributions to medical education and conference organisation

Rajeev R, Harsha K. J., Panattil J. G.Unusual Case of Cerebellopontine Angle Epidermoid Causing Cerebellar Atrophy. Asian Journal of Neurosurgery. 2018; 13(1):195–196. [DOI: 10.4103/1793-5482.181126]

Anu C. Thomas, Rajeev R. A Rare Case of Dumbbell-shaped Primary Intraspinal Peripheral Primitive Neuroectodermal Tumor Involving Thoracic Spinal Epidural Space. Asian Journal of Neurosurgery. 2018.

G. Kovoor, K. Parameshwaran, Rajeev R., Harsha K. J., Akash K. J. Early Detection of Adult Onset Susac’s Syndrome in a South Indian Female. Annals of Indian Academy of Neurology. 2015; 18(2):257–259.[DOI: 10.4103/0972-2327.150609]

4. Korol A., Subbiah B., Rajasekharan R., Jagadevan M. Surface Electromyographic Analysis of the Bilateral Abdomen and Back Muscles During Selected Yoga Postures. Journal of Bodywork and Movement Therapies (Elsevier). 2024; 40:10.1016/j.jbmt.2024.10.015.