Hai,
Try 3-in-1 account with canara bank. unlike other brokers, they have their own broking outfit called canara bank securities. they have their own demat account facility. Being a public sector it offers full safety.
i have been trading online with them since jan 09 and satisfied with their trading platform, service, brokerage, intraday trade calls etc, etc.
i trade mostly in options and the brokerage is just 50/- per lot. that too, they charge 50/- only on one side in case of intraday trade in options. if carried over, they charge on both legs.
disadvantage is time taken for opening a/c and their brokerage is not negotiable.
see brokerage in their website
www.canmoney.in - products & service
rajesh