Every time the mobile signal improved everybody tried to reach out to their loved ones by posting and commenting on Twitter, Facebook, etc., which happened instantaneously unlike messaging which takes time to send or download, thereby enabling communication before the signal went off again.Even as normal calls were not going through, the calls made through WhatsApp were having lesser drop rates, helping people stay in touch.Facebook came up with ‘Chennai Flooding safety check’ where by marking yourself safe, allowed all your friends to know that you are doing just fine.

I need a report on it . For 10 marks can actually find various sources and merge them altogether as a can search in google,newspapers,or some videos in news channels
i would be easy for me , if some one provide me the report  as i don't have time