Stop Loss Functionality

Dear All,
Does anyone know of any online trading portal(NSE) that allows the user to set stop losses that remain active beyond a trading session.
AFAIK at ICICIDirect.com the 'stop loss' need to be reset for every trading session.

I need to travel a lot due to my job so I can't monitor my position everyday that's why I need a better 'stop loss' functionality

Thanks!