Brace yourself heavy texters. you will now have to leave the habit of sending more than 100 SMSes per day or if you can't then you will have to buy new connection/s :) as from 1st February 2011 you will not be able to send more than 100 SMSes a day. As per Telecom Regulatory Authority of India, all Telecos are required to withdraw any SMS Pack or Plan in which they offer more than 100 SMSes a day. And after reading this if you are thinking of paying for SMSes beyond 100 SMSes then, sorry, you can't do that, no matter what your plan is or you want to pay for addtional SMSes, you will not be allowed to send more than 100 SMSes.
Extract from TRAI's Notifcation published on 1 Decebmer 2010
Extract from TRAI's Notifcation published on 1 Decebmer 2010