I'm on a 512kbps DSL "unlimited" download "broadband" plan which defaults to 256kbps after a certain amount of download (can't recollect the limit). Airtel is my service provider.
This month is the first time, I've come across the limits being applied. And the only thing that was of significant download size for the entire month was the linux Ubuntu download (about 700MB).
Message after "limits" were applied
And to imagine that this comes @ ~Rs900 per month, makes me cringe at the "broadband" options that are available in India.