Muthiah Ramanathan serves as the Director and Founder of Mind Dynamics Center, Chennai, India. He specializes in Transactional Analysis, Neuro Linguistic Programming,  Psychology and Hypnosis.

He has served as the President of the Hypnotique Circle Chennai for 14 years. He has served as the Founder Secretary of NLP and TA Circle, Chennai for 5 years.

In well over 35 years, he has presented training programs on all aspects of Personality development for well over hundred thousand people in English and Tamil, all over India.

He has also presented in-house training programs in Malaysia and Sri Lanka. Has presented online training programs in USA, England, Malaysia, Australia etc.,

He has presented papers on various topics in TA and allied fields in more than 10 TA Conferences, held in India

He has written 2 best-seller books in Tamil:
1. The Powers of the Sub-conscious Mind and Hypnosis
2. How to Score more than 90% in Exams

He has appeared as Guest of Honor, presented interviews and participated in self development oriented, psychology based panel discussions in several leading Tamil TV Channels.

Nearly 200 of his Videos on various aspects of Personality development are available in the YouTube Channels : 'Mind Dynamics Tamil' and 'Mind your Mind with Stephenraj'.