Mobile phone shuts down automatically due to NTRO hacking

In an indication of ntro hacking of phones of harmless domain investor a blackberry mobile phone shut down automatically after receiving a mobile phone call on 19 May 2017 around 1 pm . For the first few rings, the blackberry phone was working normally , however after that no sound was audible from the phone, though the number starting with 7 was being displayed.
However when the domain investor started speaking on the phone, the phone was shut down automatically, remotely by NTRO,
After the mobile phone was restarted there was no record of the last mobile number from which the call had been made, indicating that NTRO, R&AW are also deleting/modifying the call records on the blackberry mobile phone.