After the pictures of sign boards warning people against feeding pigeons go viral, Thane Municipal Corporation on Friday said that the warning is issued time to time to sensitize people about ‘hypersensitive pneumonia’ that is contracted by living in the close proximity to pigeons.

The sign board, which has Thane Municipal Corporation (TMC) inscribed on it, warns people not to feed pigeons within the civic body's municipal limits and also warns of Rs 500 fine to be levied on people found defying the warning.