More digital cams to jam Aftab’s cell

A senior police officer confirmed that a sim card was seized from Happy during his stay here. He was later shifted to another jail.

The attack on the American Centre in January last year was said to have been carried out in retaliation to Kolkata Police’s arrest of Asif Reza Khan, a member of Aftab’s gang, who was killed in an encounter with the police in Gujarat.

An official of the Prison Directorate said an inquiry into the complicity of jail staff in providing Aftab a cell phone was still on. The probe has so far revealed that Aftab did not keep the cell phone with himself as he could not recharge it. Instead, a set was passed to him for short periods and taken back by ‘‘moles’’ in the jail after he had spoken to his contacts.

Kolkata Police’s Detective Department began monitoring the calls with the help of the service provider after they got information that Aftab was using a cell phone inside his cell. Police have refused to divulge the phone numbers he had contacted.

Aftab’s ‘‘contacts’’ inside the jail are yet to be identified. The suspension of four warders was more of a routine disciplinary action on grounds of dereliction of duty and did not necessarily mean they were involved.