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MALAYSIA has lost one of its most influential medical pioneers with the passing of Tan Sri Dr M. Mahadevan, the psychiatrist widely regarded as the father of modern Malaysian psychiatry, whose groundbreaking work transformed mental healthcare, psychiatric rehabilitation and clinical hypnotherapy across the country and the wider Asian region.
Dr Mahadevan, the founding president of the Malaysian Psychiatric Association and the nation's former Chief Psychiatrist, died at the age of 96 after a lifetime devoted to advancing psychiatric medicine and improving the treatment of people living with mental illness.
Born in Kuala Lumpur on Sept 9, 1929, he began his education at St John's Institution before earning his medical degree in Bangalore, India, in 1961.
He later specialised in psychiatry at University College Dublin under Professor John Dunne, laying the foundation for a career that would redefine psychiatric practice in Malaysia.
A pivotal moment came in 1965 while he was working in Ireland, when he used clinical hypnosis to stabilise a man suffering severe psychological trauma after a road accident claimed the life of his pregnant wife.
"I recall using clinical hypnosis to stabilise Leonard. That did the trick and eventually saved his life," Dr Mahadevan had said.
The case attracted international attention and led to an invitation from renowned hypnotherapy pioneer John Hartland to lecture globally on the use of hypnosis in haemorrhage management.
His work subsequently earned him research opportunities at Columbia University under Herbert Spiegel and an appointment at Harvard University under Professor Emeritus Chester Pierce.
His contributions were later recognised by Harvard through the establishment of a travelling fellowship in his honour, while he also became the first Malaysian to serve as president of the Asian chapter of the International College of Psychosomatic Medicine.
In 1967, at the personal request of Malaysia's first Prime Minister, Tunku Abdul Rahman Putra Al-Haj, Dr Mahadevan returned home to lead the Central Mental Hospital in Tanjung Rambutan, Perak.
Under his leadership, the institution was renamed Hospital Bahagia Ulu Kinta and underwent a remarkable transformation from a custodial psychiatric facility into a centre focused on rehabilitation, dignity and recovery.
His reforms introduced innovative therapeutic programmes, including horse-riding therapy, while establishing the Madhuban Home halfway house and a drug rehabilitation centre in Batu Gajah.
The hospital's progressive approach earned international recognition, culminating in a World Health Organisation Gold Medal in 1989.
Beyond hospital administration, Dr Mahadevan became renowned for applying psychiatric expertise to conflict resolution and crisis management.
His ability to defuse highly charged situations drew praise from regional leaders, including Singapore's founding Prime Minister Lee Kuan Yew, while his proprietary Mahadevan Method continues to form part of the curriculum at the London College of Clinical Hypnosis Asia.
Despite his global reputation and numerous professional accolades, colleagues often described Dr Mahadevan as a deeply humble physician who understood the emotional toll carried by medical practitioners.
"As a psychiatrist, I counsel and assist many people. However, when I am in need, who counsels me?" he once reflected, explaining that he sought spiritual guidance beyond conventional medicine to maintain his own emotional well-being.
Dr Mahadevan leaves behind a legacy that extends far beyond medicine.
Through his pioneering reforms, international scholarship and unwavering commitment to compassionate psychiatric care, he fundamentally changed the way mental illness is understood and treated in Malaysia, inspiring generations of psychiatrists and healthcare professionals.
A funeral service will be held at the residence on Thursday (June 18) at 9.30am before cremation at the Sentul Hindu Crematorium at noon. - June 17, 2026
