Low Brokerage??

Hi,
Just now joined this forum. Wanted to know which is better for low brokerage and efficient software for intraday.. I am looking for Geogit, RK Global, RelianceMoney, Sharekhan..

I currently have trading account in ICICI direct.. but brokerage is bit high and i am using web-based version, so slow to execute orders..

any suggestions on this are appreciated.

Thanks In Advance..