The boards listing more than ten bureaucrats appeared in suburban Chromepet and Irumbuliyur claiming that they had been "caught" on corruption charges. Some wall posters were also found pasted, police said.
The names of the officials alongside their photographs were printed prominently in colour in the flex boards and posters by a little known outfit.
As the boards caused a flutter, police swung into action and removed them.
Recently, another association had put up a similar flex banner against officials of the state Public Works Department, but the charges were denied by the officials.