BSNL 900 combo user here. 4mbps upto 8GB and 256kbps after that. 8GB gets consumed within first 10 days usually and then I get crap speeds
Thinking of switching to a UL 1MBPS plan after 2012 price cuts start.
Didn't measure usage (dad lost the username and password to check in BSNL website and I never bother checking anyways now that we've fixed bill of 900rs), but I mostly watch HD youtube videos that take up a lot of bandwidth then OS updates and finally sis watches serials online.
Stopped downloading things to HDD because its more convenient to stream at full speed whenever I want to watch something. 500GB external HDD only has my own files and data like my photography collection. All my music/cartoons/sitcoms/serials I enjoy online