"The man, who hailed from Mira Road locality in neighbouring Thane district, had called the office of National Investigation Agency here saying that there would be a chemical attack during the Gujarat election," a senior police official said.
According to the official, during questioning, the accused told police that he made the hoax call to frame up another person with whom he had enmity.
A case under section 182 (giving false information to public servant) of the Indian Penal Code was registered at the Gamdevi police station, the official said, adding a probe was underway.
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