Dear DohaRec,
On NSE Website data is at least 3 Min delayed but I am importing in my excel sheet and never get any trouble. It is working perfectly fine since long time.
But for getting live data I am using my broker’s software to see data in Excel Sheet Live. With this live data I am curtly analysing Open Interest Changes Live. There are many more things can be done.
I need to ask Bhatia Ji, whether I can disclose the name of my broker or not.
I don’t want to advertise for anything but I like my broker’s facilities a lot and using this DEMAT since 2003 and they are Improving system every now and then.