The police conducted rounds of various areas of Salt Lake with Sabitri Dandapat — the domestic help of the Basu family — but found nothing.
Police, however, are not ready to rule out the threat mail incident as a hoax. “We cannot say that the incident was a prank. Our investigations are on,” said Jawed Shamim, Deputy Commissioner of Police, Detective Department.
“Sabitri and Kaushik told us that one of visitors to the café had sent the terror mail. We have prepared a sketch of the accused and are trying to trace the miscreants,” an official of the detective department said.