While Airtel quotes at the time of opening a new connection with a new client (or prospective client) that they offer a total download capacity of 2GB (data transfer capacity @ rental of Rs.749)...and for the time period 8th Aug - 20th Aug, they have billed me Rs.2500. I was shocked for 2 reasons...(1) they say that TRAI has strictly asked them not to issue itemized bills (that is what a team leader of the Airtel centre close to my house told me... can you believe it!!!) , (2) that the billing is based on the duration when the modem is switched on and not on the total download capacity (i.e., not the 2 GB of total data packets transfer that happens...). They market this product saying 2GB download capacity and charge for an irrelevant usage nature. This is unethical. Please raise your voice dear friends who are facing this problem. I have cancelled my connection.