He further specialized in ENT, obtaining his Diploma in Otorhinolaryngology (DLO) in October 1986 and his Master of Surgery (MS) in April 1990, both from Government Medical College, Kozhikode.

With over 42 years of extensive teaching and clinical experience, Dr. Ramachandran has made significant contributions to the medical field, particularly in ENT. He joined KMCT Medical College Hospital on June 1, 2015, after serving in various capacities at Government Medical Colleges in Calicut, Thrissur, and Alappuzha. He is registered with the Travancore-Cochin Medical Council (TCMC) under Registration Number 12588.

Dr. Ramachandran has an impressive list of publications, including research featured in prominent Indian and international journals. His publications are as follows:

Indian Journals:
- An Unusual Parapharyngeal Tumor: Cervical Sympathetic Chain Schwannoma – Journal of Case Reports in Medicine.
- Malignant Myoepithelioma of the Parapharyngeal Space – A Case Report – Indian Journal of Otolaryngology & Head and Neck Surgery.
- Primary Malignancy of Frontal Sinus – A Case Report – Indian Journal of Otolaryngology & Head and Neck Surgery.

International Journals:
- Skull Base Osteomyelitis Resulting in Petrous Internal Carotid Aneurysm – A Case Report – Otolaryngology Clinics – An International Journal.
- Vertical Cricoid Lamina Ossification: A Rare Pitfall in the Diagnosis of Extraluminal Foreign Body – International Journal of Head & Neck Surgery.
- Drug-Induced Airway Hematoma – International Journal of Head & Neck Surgery.
- Four Cases of Cervical Sympathetic Chain Schwannoma and Review of Literature – International Journal of Head & Neck Surgery.
- Extraluminal Migration of Foreign Body: A Report of Two Cases – International Journal of Head & Neck Surgery.
- Actinomycosis of the Hard Palate: Rare Presentation – A Case Report – Otolaryngology Clinics – An International Journal.
- A Study on Olfactory Improvement Assessed with Butanol Threshold Test in Chronic Rhinosinusitis Patients After FESS at a Tertiary Care Centre in Malabar Region – International Journal of Otorhinolaryngology and Head & Neck Surgery.
- Appearances Are Deceptive: A Case Report on Subcutaneous Dirofilarial Granuloma Mimicking a Thyroglossal Cyst – International Journal of Otorhinolaryngology and Head & Neck Surgery.

State Journals:
- Parasitic Thyroid Nodule – A Surgical Surprise – Kerala Journal of ENT – Head & Neck Surgery.
- A Rare Cause of Neck Swelling – IJV Thrombosis – Kerala Journal of ENT – Head & Neck Surgery.
- Intraorbital Schwannoma – A Case Report – Kerala AOI Journal.

In addition to his clinical and academic expertise, Dr. Ramachandran is actively involved in professional organizations. He holds memberships in the Indian Medical Association (IMA), the Academy of Medical Specialties, the Calicut ENT Club, and the Association of Otolaryngologists (AOI) at both the state and national levels.

With decades of experience in education and patient care, Dr. K. Ramachandran plays a pivotal role in shaping the future of medical professionals while maintaining an active role in clinical practice at KMCT Medical College Hospital.