The mobile internet service providers (all bsnl, reliance, airtel etc ) are plundering/looting the consumers in this way. Also as there is no arrangement to measure data consumption by the consumers during browsing they are deducting from the data pack according to their sweet will. As a result up to100 mb of data is being deducted by 15 mins. And 1gb of data pack lasts only 3/4 days.