Well, that might be true. Pay per sec has been in the market for a long time now.
I'm on mtnl now. Trust me, if you can live with the ocassional call drop while on 2G, there's nothing like it. Pure no nonsense service. Use it through the month, And this how they bill you :-
Alright. Just figured out how awesome their postpaid billing mechanism is. The thing is when you subscribe; to a data pack, say I've subscribed to the 250 bucks pack which gives 1.2GB. Now, they add 250 to the bill as fixed charges. But while giving discount, they convert the 1.2 GB to rupees and subtract it from your bill. Now, since I've only used 200mb data for the entire month, they charged me 200 bucks and subtracted 1200 😛. As a result, despite making loads of calls, my total outstanding is only 60 bucks.
And to add to that, despite whatever they mention on their website, my experiments tell me that they don't charge roaming on post paid
Rest is up to you 😉 😛