Social networking has become a vital part of people’s life in the present scenario. Facebook, twitter, Orkut are some examples of social networking sites and Hike, WhatsApp, Line, Wechat, Messenger, Viber etc are some of the examples of instant messaging applications in mobile phones.
Out of these, WhatsApp has rapidly grown in few years whose users have increased from 100 million users to 900 million users till August 2015. WhatsApp...