I bought the 3G SIM & datacard from Chennai more than a year back. Use it only in my laptop. Never had a problem while using it either in Chennai or Bangalore till now. Download speeds touched 400 kbps+ when using torrents etc. Browsing speeds also were very good. Its a 10GB plan and I pay 1100 every month(999 + taxes)But exactly from August 1, I have noticed a sudden drop in the speed. (I haven't changed my residence or the location I connect from). Now I am getting like 1/10th of the speed that I used to get earlier. It is almost like 2G speed(if not worse). Browsing speed averages 20kbps even with the HSDPA connection!It is painful to sit and wait for a page to load and pay 1000+ for this... Would be grateful if anyone has any suggestion/pointers etc..