Wing Commander Abhinandan was locked up in a solitary cell in Pakistan: sources

According to news agaency ANI, after returning from Pakistan, Wing Commander Abhinandan Varthaman has informed that though he was not physically tortured by the Pakistanis; he went through a lot of mental harassment. 
Sources also revealed that IAF wing commander Abhinandan was locked up in a solitary cell, without access to TV, radio, telephone or newspapers immediately. 
He also had no knowledge about Imran’s decision to release him when he was forced to record a statement (prepared by his captors) praising the Pakistani Army.