The fire was doused within an hour by firefighters.
Fifteen fire engines and around 100 firefighters were present at the scene of the incident to douse the blaze, said London Fire Brigade.
The cause of the fire is not yet known.
The blaze took hold from the ground to the sixth floor of the building, at around 3:30 pm (local time).
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)