Their procedure is very simple, once you take any connection from tata indicom, that’s it. You fallen to their network. They are expert in sending bills to your address even after you disconnect tata indicom connections. If you are not paying their bills (for the disconnected connections) they will send another heaviest bill to your address. If you call their customer care no reply.
After few days/months you tend to forget about your bills and surprisingly no communication from tata indicom too. But this is starting of the problem, finally you will receive a court notice (lok adalath ) regarding pending bills. There is no room to tell about your story. All decisions are once sided ( its non-other than tata indicom only). You have to pay the pending by hook or crook.
So do not ever go for tata indicom connections at point in your life.
One of the worst service in internet service providers.