Hi Bro,
I know MicroMax is an excellent company and doing a great job these days in mobile market! However for the 3G data card, I would suggest you to go with Huawei [I have personally used UMG1831 and E1550] and hardly got an issues. There is a service center of Huawei in Delhi, so no worries...
Well I have just uninstalled Ubuntu 11.10 yesterday, else I could have posted some screens here, but you can get the snaps from google image search just search for - "nvidia xserver settings"....
Hope it helps!
Same here, I cannot even get the speeds on local MTNL SIM, support do not want to look at the problem at all.
--- Updated Post - Automerged ---
Going to purchase a new MTNL 3G connection and would see if it makes any difference.