A chicken takeaway customer smashed another man over the head with a chair when he was bumped into then returned to the back door with a knife.
Detectives from Newham Borough in east London are investigating and have issued this CCTV image of their Bengali suspect.
On Wednesday, July 27, last year police were called at around 9.00pm to Papa’s Chicken on High Street North in Newham.
Police attended and found a 25-year-old man being treated by London Ambulance Service.
He had suffered cuts to his head and eye lids, and a bruised jaw after being hit over the head with a chair.
CCTV from within the shop caught the moment when the victim paid for some food and turned to leave.
As he turned, he brushed shoulders with the suspect who started to shout and argue with him.
The suspect then attacked the victim and despite trying to protect himself, he was hit and kicked several times in the head.
The suspect ran off along Milton Avenue.
He later returned to the rear of the shop armed with a knife and left upon police arrival.
The suspect is described as a slim, muscular man, aged in his mid -thirties and 5ft 10ins tall.
He was wearing blue trousers and a blue hooded top.
Police are keen to hear from anyone who may recognise the man or who witnessed the assault.
Anyone with any information is asked to contact police via 101 or Crimestoppers anonymously on 0800 555 111.