S.N.R Sons Charitable Trust was founded in 1970 by the illustrious sons of Sri S.N. Rangasamy Naidu; being an ardent devotee of Sri Ramakrishna Paramahansa, all the institutions started by the trust, bear the name of the holy sage ‘Sri Ramakrishna’. The trust runs various Hospitals and institutions namely Sri Ramakrishna Hospital, Sri Ramakrishna Dental College and Hospital, Sri Ramakrishna College of Nursing, Sri Ramakrishna College of Physiotherapy, Sri Ramakrishna College of Pharmacy, S.N.R. Sons College, Sri Ramakrishna College of Arts and Science for Women, Sri Ramakrishna Engineering College, Sri Ramakrishna Institute of Technology, Sri Ramakrishna Polytechnic College, Sri Ramakrishna Advanced Training Institute, Sri Ramakrishna Matriculation Higher Secondary School – Avarampalayam, Sri Ramakrishna Matriculation Higher Secondary School – Vattamalaipalayam, Sri Ramakrishna Vridhasramam, Sri Ramakrishna Rural Health Centre, Vattamalaipalayam, Sri Ramakrishna Rural Health Centre, Pachapalayam, sri Ramakrishna allied health science institute, sri Ramakrishna urban health centre, Ganapathy and Community Halls in Coimbatore.