Dr. Pattatheyil Arun has done his MBBS in 1995, MS in 1999 from Calicut University and then went on to do his M Ch in the year 2007 from Amrita Vishwa Vidyapeetham University. He then did his Visiting Research Fellowship in Clinical and basic research in Head & Neck Oncology in 2009 from National Institutes of Health, Bethesda, USA. He has a 11 years experience working in Amrita Institute of Medical Sciences , Kochi where he was last working as Associate Professor before he resigned to join TMCT, Kolkata.

His clinical interests span head and neck surgical oncology, tissue banking and stem cell research.