Dear Prak ks
Be very careful on your choice. Do not even think these so called private sector banks offer you a good platform. Icici online trading web based / DL can ruin you totally. They lack the required technical expertise. Be careful not to select this one. The lesser known guys will offer you faster software based trading. Demand for it. Then only trade. Check how your money is going to be credited.
Don't think I am painting a gloomy picture. The reality is out there. they will grab all your money. Think , evaluate and then act.
Best of Luck