Police say 26-year-old Dwight Nicholas Williams is also autistic.
In a release the TTPS says Mr. Williams was last seen at his Picton Road, Monkey Town, around 6:10 a.m. on Monday.
He was reported missing to the Barrackpore Police Station, by his mother on Tuesday.
Mr. Williams is said to be of mixed descent, 5 foot 2 inches tall, with a dark brown complexion, low haircut, and a medium built.
Police say he also has a tattoo of a rose on his chest, a cross on one arm, letters on the other arm and a burnt scar on his foot.
He was last seen wearing a green jersey, blue ¾ pants and a pair of grey Jordan sneakers.
Anyone with information on the whereabouts of Mr. Williams is asked to contact the police at 999, 555, 911, any police station or call 800-TIPS.