This may attract some harsh remarks, but I will anyway say it.
India, as a society, has regressed back to the dark ages. The culprit, in my opinion, are population and poverty, and joke of a political system adds fuel to that fire. People don't have means to fulfil their basic physiological needs, like food, home and intimate companionship. They don't have means to satisfy their ego in a productive manner. That's why the mob mentality comes. They jump in to show their power whenever they get a chance. This explains frequent rioting, mob behaviour, cruelty to fellow humans, cruelty to animals (this example and latest killing of rhino in Kaziranga), domestic violence, disrespect to people in lower social strata and so on.
Empathy, consciousness and common sense have all disappeared, more so after armies from middle east started invading from 8th-9th centuries. One of the greatest and longest running societies in modern man's history disappeared, and today we don't even see a mere shadow of that.
Truely, we are a "noisy democracy" ....Jai Hind !!