Tata Docomo Photon 3g not working on 12.04 LTS
Solution 1:
Use sakis3g script
Sakis3G is a tweaked shell script which is supposed to work out-of-the-box for establishing a 3G connection with any combination of modem or operator.
It automatically setups your USB or Bluetooth™ modem, and may even detect operator settings.
It may work for you.
For details on sakis3g installation please refer to official Github page of sakis3g
For details on how to use sakis3g refer the official page
see this post for additional reference.