All these "per order" brokerage fee charging broking houses are seemingly supporting this new irrational and completely uncalled for changes in the intraday margin policy. Well they may have their own compulsion in supporting this but the fact remains, if these rules are really implemented in the current form , the biggest hit will be taken by these 'discount' brokers. "per order" fee makes sense to futures and option traders who want to trade in bigger lot sizes, at least in the intra-day scenario. And bigger lot sizes invariably incorporate intraday leverage as a package. Why on earth would anyone pay these discount brokers Rs.20/- for 1 lot of Nifty (assuming trading capital of 1 Lac ) when many big broking houses are already offering as low as Rs 2/- to Rs.5/- per lot? Volumes would dry up and to attract volumes many broking houses will be forced to under cut this 20 rs per order model in a big big way.... But biggest question remains --- is the government ready to suffer a big dip in STT collections from the markets , especially in the current fiscal scenario ...?