GREATER NOIDA, May 22 -- The Greater Noida authority has issued notices to owners of structures built illegally on the floodplains of river Hindon, thereby damaging the river ecology, said officials in the know of the matter on Tuesday.

The authority has issued a total of 350 notices to owners of structures raised in violation of the laid down rules. As per the Uttar Pradesh Industrial Act, 1976, no construction can be allowed on the riverbed that is notified by the authority. The authority issued 176 notices to in Haibatpur village and the remaining in Sunpura village, officials said.

"The authority does not allow any construction without map approval. If anyone is found resorting to illegal construction, then action will be initiated,...