I have tried several service providers to find that may be MTNL could be the best option. I have taken the unlimited 499, however even limited time slot is not available.
MTNL service complains is not attended properly and even if attended it is a temporary quick fix for a day or two.
I am sick & tired of MTNL broad band service and shall wish if I could get back all the bills paid since last 2 years with such bad service. Since on a touring job, even for 2/4 days in a month the broad band service while at home is quite difficult and lot of frustration.