Nirmal is an Otolaryngology/ Head & Neck Surgeon who has completed two USA based Fellowships in Ear and Lateral Skull Base Surgery. Nirmal runs a public and private clinical practice specialising in Ear/ Lateral Skull Base Surgery and Children's ENT surgery and is appointed at Royal North Shore Hosptial in Sydney. Research is an important part of his practice, with interests including Micro Computerised Tomography of the Temporal Bone, Cochlear Implants, Additive Manufacturing in Otology and Biofilms/ Mucosal disease of the Middle Ear.