Professor Das De is actively involved in medical student teaching at NUS and is the Chief Co-ordinator of M3-M5 student medical curriculum. He is the director of the undergraduate education in orthopaedics and member of the new undergraduate curriculum at NUS. He holds numerous positions at various committees of the medical faculty at NUS. He was a member of the DSRB (Domain Specific Review Board) of research projects submitted at the NHG group till June 2010.
He is a member of the Singapore Medical Association and the Western Pacific Orthopaedic Association. He is the co-ordinator for South East Asia of the Indian Orthopaedic Association (IOA) and examiner for the MBBS at NUS, M.Med examination (Malaysia), for the FRCS (Edinburgh) Orthopaedic Specialist examination in Hong Kong and Singapore. He was a Past-President of the Singapore Orthopaedic Association, and past VicePresident of the Singapore Orthopaedic Association, and past Vice-President of both the Asia Pacific Arthroplasty Society and the Singapore Osteoporosis Society. He was the Chairman of the Orthopaedic Specialist Training Committee (STC) from 2002 till end 2008 and the FPTC (Faculty Promotion and Tenure Committee) at NUS from 2002 till June 2009.
Presently he is the Chairman of the M.Med Orthopadics (NUS) committee and a member of the UPTC (University Promotion and Tenure Committee). Professor Das De is the author of over 81 scientific research articles, and 17 book chapters, 2 thesis and over 261 conference papers, posters and guest lectures locally and internationally and 36 Seminars, public talks and lectures. He is on the editorial board of the Journal of Foot Surgery (India) and reviewer of scientific articles submitted to the Clinical Orthopaedic and Related Research journal [CORR] (USA), British “Injury” Journal, Journal of Orthopaedic Surgery & Research and local journals (Singapore Medical Journal and the Annals of the Academy of Medicine of Singapore) and reviewer of National Medical Research Council research grants.