On Sunday, the National Investigation Agency found a secret camera at the residence of suspected al-Qaeda terrorist Abu Sufyan, one of six arrested in the Murshidabad region of West Bengal, authorities said.
Several electronic gadgets and a bulb board were also found during the one-hour raid on the one-story house, he said.
Sufyan’s wife later told reporters that the camera had been dug for a septic tank for an attached toilet.
“We told the cops about it,” she said.
During the interrogation, Sufyan told investigators about the camera, the police officer said.
The interrogations of the six continue in Calcutta during the day, officials said.
The National Investigation Agency (NIA) on Saturday arrested nine suspected al-Qaeda terrorists from West Bengal and Kerala.
While six of them were arrested in the Murshidabad region, three others were arrested by Ernakulam in Kerala.
NIA Special Judge Prasendjit Biswas left the six people arrested by Murshidabad in NIA custody.
Charges have been brought against them under various sections of the Illegal Activities (Prevention) Act.
The detainees from Murshidabad have been identified as Najmus Sakib, Abu Sufyan, Maynul Mondal, Lei Yean Ahmed, Al Mamun Kamal and Atitur Rehman, according to a NIA spokesman.
It says the group is planning terrorist attacks on vital installations in India in order to kill innocent people and inflict terror on their minds.
Digital devices, documents, literature, sharp weapons, locally produced firearms, locally produced bulletproof vests, items and literature used to make improvised explosive devices were seized, the NIA said in a statement.