Such "precautionary" moves are putting the cart before the horse; they value the state over the freedoms of the people. They are incompatible with any honest representative government.
If someone drops his pants, or more accurately does something much worse (multi-homicide level worse) and claims "I did because BTNM said so", no one will seriously question his/her judgement or responsibility of listening to BTNM but will fall over themselves in their eagerness to blame BTNM exclusively and put a blanket ban on anything that is deemed unpopular by the people who have influence: think of the women and children that may be harmed.
I am sick and tired of waiting for us to behave like adults and treat people like adults with the full set of responsibilities that comes with it. But no, we want to be treated like kids incapable of taking responsibility of our own actions and elect such people to high places.
I expect this to be downvoted if there is a large Indian audience hanging out here. This is definitely a minority view here, going by multiple conversations I have had on this topic.
I'm an American expat living in India and it's still quite alien to me after a few years. The government really can tell you to stop saying something because it offends someone else. They can do that because the alternative is that hundreds or even thousands of people die.
My opinion on that decision isn't terribly important because I'm not Indian; it's not my decision to make. It's a very deliberate compromise that the Indian people have found over the decades.
On wired network probably only fb & whatsapp are banned.
Edit: Yes[0]
[0] http://www.aljazeera.com/news/2015/08/indian-army-deployed-r...
That would require declaring an Emergency AFAIK.