You need not bother much about intraday or delivery. Select a good brokerage anything like indiabulls, 5paisa etc., All shares bought and sold the same day before market closes is treated as intraday and brokerage will be less, if you don't close your position, they treat it as delivery and the brokerage will change.
In ICICI we have this time limit to square off before 3.00 or 2.50 pm I suppose, I use ICICI only for long term purchases, so I don't know what is their procedures now.
ICICI does not give your terminal to trade, without terminal it is hard to do intraday trades.