Subramanian Gnaneswaran was last seen at his sister`s home in Laval.
After his visit, he left to go for a walk and has not been seen since.
Police say Gnaneswaran has schizophrenia and normally lives at a Montreal psychiatric institution.
The 52 year old was wearing a black coat lined with white stripes before he disappeared.
- Weight: 160 pounds
- Brown skin
- Black hair
- Brown eyes
- English speaking
Anyone who information about Gnaneswaran`s whereabouts is asked to phone 911. To share other information related to the case, members of the public can phone 450-662-INFO (4636).