Subramaniam's surgical practice covers cancers of the oral cavity, oropharynx, salivary glands, thyroid, larynx, pharynx, sinonasal cavity and anterior skull base. He operates in the post-radiotherapy salvage setting and performs microvascular free-flap reconstruction. He has a clinical interest in the jaw-in-a-day technique, which involves same-session implant-based dental rehabilitation following jaw resection, and in facial nerve reanimation. He published one of the largest global series on single-stage jaw reconstruction in the setting of oral cancer. He worked at Sri Shankara Cancer Hospital and Research Centre, Bengaluru, before being appointed Director of Head and Neck Surgery and Oncology, and Director of Clinical Innovation, at Sparsh Hospitals in November 2023. He joined the Aster International Institute of Oncology as Lead Consultant in May 2025. He served as chair of the Bengaluru chapter of the
All India Management Association Young Leaders Council.
Notable cases In February 2024,
The Hindu reported on a skull base surgery he performed at Sparsh Hospitals. A tumour was removed from a 67-year-old patient without splitting the jaw or cutting the face, using a novel transoral transpterygoid approach. In 2022, he operated on a case of
chondrosarcoma of the temporomandibular joint at Shankara Cancer Hospital. At the time, only 34 such cases had been documented in world literature. It became the 35th. ==Research==