Boyle's apparatus used for giving anaesthesia from the 1940s is in the National Institute of Mental Health and Neurosciences in Bengaluru. Photo: Bindu Gopal Rao
Boyle's apparatus used for giving anaesthesia from the 1940s is in the National Institute of Mental Health and Neurosciences in Bengaluru. Photo: Bindu Gopal Rao

What's inside Bengaluru's Nimhans mental health museum?