Wanting to charge for WhatsApp was predictable. In fact, I predicted it.
Globally (and a large chunk of it was in India), the SMS carriers lost about $9B to WhatsApp. This is why Facebook was willing to pay $18B to acquire it, since they wanted leverage over the carriers in those countries to force Internet access, because Facebook lives or dies by Internet access of its users. It's the same reason Google has so many initiatives to extend Internet access everywhere.
The carriers have lost a large chunk of their SMS revenue, and Skype is converting a lot of their voice traffic to Internet traffic, and they are therefore losing money on that too. So they want to add fees for use of Skype to make up for origination, connection, call completion, and time-on-call fees which are going away as Indian users are discovering that if they have Skype to talk to people internationally, and the other person in India that they want to talk to has Skype to talk to people internationally, why, they can use Skype to *talk to each other* and cut out all the middleman fees for virtual circuit switching services.
Telecom companies are quickly becoming the vendors of dumb pipes, with their only service level differentiator being what diameter of pipe you are able to get. And they very much do not like this. This is why we have things like data caps with huge overage charges, and video services that the carrier gets paid by the video, and it doesn't cost you against your data cap, but if you use someone else's video service, it costs you.
And so they are fighting net neutrality tooth and nail, because their revenue streams are drying up.
The really, really ironic thing is that if the telecommunications company had deployed these technologies themselves, they could have fit them into their existing tiering, and kept the majority of the profits that are now flying out their window. They would have had a reduced income stream, to be sure, but they would have had it, instead of it going to some third party.
Expect Microsoft and Facebook to spend heavily to defeat these measures.