'Although, I was aware that police used to visit the organizers of my lectures, mostly universities, and scare them with enquiries about me, I thought they might be mistaking me for my brother who left family years back. While I was teaching at IIT Kharagpur an officer of BSNL phoned, introducing himself as my admirer and well-wisher, informed me that my phone was being tapped. I thanked him but did nothing, not even to change my sim.'