If you are regular intraday trader, Never go for Kotak securities. They charge huge brokerage like 0.05 or 0.04 intraday. You cant earn profits with this kind of brokerage. They also take very long time to open a account. My experience with Globe is very bad. They charge RS 5000 per 1 lac in equity delivery, that is worst part of Kotak securities.
Software and service is good. But at the end money does matter.