Its best you avoid these smaller brokers, I myself use icici and Angel and I much prefer icici even though it is much more expensive the reason being I find them very professional, and they do not make errors or forget things.
I am not a day trader.
With Angel I have to constantly call and remind them of stuff, and they'll say "ha saab ha saab kar denge," and they conveniently forget , I have to call them up again and the process repeats.
They aren't cheats or anything but its a hassel doing business with them.
They have infact made errors in my statement of accounts, so I have to meticulously check everything, and I mean everything. I don't really feel safe with them.
I should point out the brokerage is just a fraction of what I pay to ICICI.
After a year I think it is better to pay higher brokerage but have peace of mind than the other way around.
This is just my opinion though I'm sure others may have different views.