Delivering his convocation address at the National Institute of Mental Health and Neuro Sciences (NIMHANS) here, he said "superstition often blocked proper treatment and cure for the mentally ill".
He said the field of mental health faces the triple challenges of lack of knowledge, lack of awareness, and superstition, and people should understand that mental illness is curable scientifically.
Modi, who started his speech by greeting the audience in Kannada, welcomed poor children from different schools in Bengaluru who were present at the Convocation, calling them 'special guests'.
He also encouraged the students who were being awarded degrees at the convocation to interact with these children, saying it could prove inspirational for them.
NIMHANS that evolved from mental asylum in 1850 became the All India Institute of Mental Health founded by Dr Govindaswamy in 1954 and in 2013 it rose to the status of Institute of National Importance.