Looks like Kolkata is on High Security Alert. I received an SMS yesterday from VK-Klpolice where they say :
Do not touch any unidentified object. Inform anything suspicious on 100/1090. You are the eyes and ears of our city. help KP in keeping Kolkata safe
First I thought this was some false sms but many of my freinds confirmed receiving the same and hence it is true. Also I verified the Sender ID of the Sms this is definitely from Kolkata Police.