A walloping from the country's top green court appears to have worked - after years of inaction, Bengaluru's largest lake, Bellandur, a fixture in the headlines because of its regular frothing and flaming, is being cleaned. Six days ago, the National Green Tribunal in Delhi set a month's deadline for Phase One of a rescue mission for the 1,000-acre lake in the South Eastern part of the IT hub. Weeds are being removed now - a project that is likely to cost 3.35 crores. Four security cameras have been installed so far around the lake to identify anyone polluting the lake, which will be penalised with a fine of five lakhs.