Tried the reply from rahujas
NO need to use any proxy, don't depend Tata indicom customer care people. They have the best answer is we are not supporting this model.
Download and install the files in your windows mobile, Tataindicom internet settings are ready. Everything is working - IE/ Outlook / Messengers.
Plan charges are 10kb - 10 paise.
Regards,
Raj
TATA.zip