Dr Muthiah is the Chairman of the Prestigious India Institute of Management Kozhikode. He is also the Chairman of the Sri Venkateswara Educational and Health Trust that runs the highly acclaimed Sri Venkateswara College of Engineering near Chennai.
Currently, Dr Muthiah is the Managing Trustee of the ACMM Medical Foundation, Which runs eight primary health care centers, free of cost, catering to primary health care and health educational needs of 2000 to 2500 families located in village with out medical facilities. He is also the managing trustee of ACM Educational Foundation which runs two vocational training institutes providing employment opportunity.
The Sankaracharya of Kanchi bestowed him the title ‘Sat Seva Ratna’. Dr A C Muthiah has become the chairman of the CHILDS Trust Hospital from 1 st December 2013.