For the Rs 149 plan the data limit per day is just 150 mb, so yeah that is a bummer. But look at it this way, for a paltry 4 bucks/ month extra (153/month) you could have 1Gb/ day data limit if you opt for the 459 plan. Granted, a bit expensive for a lump sum payment but you'll have to recharge after 28 days for the Rs 149 plan anyways.