I had a trading account with reliancemoney . I recently opened account in india infoline .They said the brokerage will be 3 paisa and 30 paisa. I opened my account with rs 25 000 .But when I started trading .They were actually charging .05 and .5% .When I contacted them they said you need to put more money atleast 50k to have 3 and 30 paisa brokerage .
Also they use a very dangerous formula to calculate the brokerage they calculate .5% of the total amount and then add this amount to the each share you traded so that the actual brokerage increases more that .5%.(this formula is generally used with lifetime 555 accounts)
The only thing I admire about indiainfoline is that their software which is free and very fast