I had purchased this Tata Indicom Connection in November 2005 and from that till May 2007, the Tata Indicom Network working smoothly. But after the May 2007 this Tata Network is most worst network in India. You can make call all other network except this Tata. Even if you try to dial Tata to Tata, its more worst network. Regarding this I was trying to complaint on TATA Customer Care Number 12527, its not reachable or busy all the time. Fortuneatly Once I got that number, but after holding a 22 minutes time, it did not connect to any Tata customer care executive.
This is my worst experience with this TATA Indicom. Now I suggest all people, please do not take this connection or suggest to anyone.