mohit, be carefull today as crude inventory data will come in evening and it will instantly give a buying or selling pressure, if you happen to have a open trade at that time, make sure you place a stop loss before hand to protect your profit/loss.
Last week it took just a couple of seconds and crude was down approx 40 points
as soon inventory stock was released.
I've heard 60-70 points instant movement is easy in crude during that time.
The brokerage you've mentioned is one side 4 paisa ?
whats your brokerage cost of buying/selling, mine is approx Rs.70 + taxes.