GUYS, I have tested it properly. MTNL has actually implemented this to talk to us directly on browser. this is as per the new telecom regulations. they will send all updates using this service and no need to worry, no compromise with any user privacy. this is new age stuff
good service to talk to the subscribers, consider this e-bill subscription, this will actually give MTNL some precise data to send emails on.
the plan upgrade message is so cool, helped me in migrating to a better one by the click of the button. MTNL is really getting efficient.
it seems like no other major ISP has implemented such stuff, this is as per the new telecom guidelines. they will soon inform us about our data usage and pending bill payments using this service. this is good.