M.S.Chellamuthu Trust and Research Foundation is a Non-Governmental, Secular, Non-Profit, organization registered as a Trust under Indian Trust Act. It was founded in the year 1992 by Dr.C.Ramasubramanian, Consultant Psychiatrist, Madurai.

The Trust is one of the leading organization in the whole of South Tamilnadu, India working primarily to promote mental health through holistic mental health care services.

The Trust is empanelled with the National CSR Hub of Tata Institute of Social Sciences, Mumbai.