I am Post paid customer of Tata Indicom Mobile, I had activated "Do not Disturb" on my mobile (Since Dec 2007). I keep getting calls from lady explaining Tata Indicom Promotional calls after every 4 days. When I tell her that I have activated DND on my mobile, she starts misbehaving. I have very busy schedule during the working days and she is unnecessary troubles.
I am getting calls from 01164681747 named Preeti. I would recommend, not to buy Tata Indicom since Promotional calls is a nuisance.