Brokrage charges in OPTION trading

hello guys,:)

I have 2 questions...

As far as I know that the brokerage charges for Intraday is 0.03% on buying and 0.03% on selling..

I want to know how to calculate the brokerage charges for Option trading, suppose I bought 1 lot of IDFC (13200 shares) at price 0.55 the brokerage charges will be 0.035 x 13200 = 462 Rs.

Now my question # 1 - is the above calculation I did is correct or wrong.
question # 2 - the amount of 462 Rs. will be charged for both buy
and sell??? Or 462 for buy and 462 for sell ???

Thanks & awaiting your valuable reply.
Salman

Brokrage charges in OPTION trading