Pakistan Police have alerted security forces in Karachi about "potential women suicide bombers".
A faxed message signed in the name of al-Qaeda threatened to blow up the British and US missions. It also threatned European enbassies.
The Ernakulam Additional Sessions Court had found Shobha John and eight others guilty in the blackmailing of former Sabarimala Thantri Kandararu Mohanaru.