Kathir is currently specialising in the advanced management of upper limb surgeries in Australia. He was the best outgoing all-rounder during his under graduate degree. He graduated M.S (Ortho) from Government Stanley Medical College and topped the cohort. He cleared his DNB and MRCS soon after his post-graduation. He is also an ATLS instructor and loves trauma management and training. He won several quizzes as a student and started teaching PG aspirants right after his first year of Post-graduation residency. This made him the youngest Orthopaedics faculty in the country. He has presented in various scientific forums and won several awards. He has 31 indexed publications to his credit. He is a great academician, surgeon, poet, orator, social activist and teacher. He is an ever-loving learner, never tiring surgeon and a great teacher who loves to share what he has learned. He is creator of the successful educational YouTube channel ADrPlexus which has over 22 thousand subscribers.