The passenger went up to the underground train in Central Hounslow between 8.20 am and 8.40 am
Hey asked a man who was already on the train who moved the bags of a seat and a buggy that blocked the carriage.
The man refused to do it and hit the victim on his face, before leaving Knightsbridge.
The suspect is described as black with dreadlock hair and a gray tracksuit.
I was with a woman with a buggy and a suitcase.
Any person with information or who may have the incident must communicate with BTP by sending text messages 61016, or calling 0800 40 50 50 40 citing reference number 116 or March 31.
Alternatively, you can call Crimeppers anonymously at 0800 555 111.
