Here is an everyone’s question. How to and from where to fetch intraday realtimedata feed. Here is the link where the yahoo finance offers real time data updates in realtime in csv format at free of cost.
http://chartapi.finance.yahoo.com/instrument/1.0/<span style="color: #0000ff;">^nsei</span>/chartdata;type=quote;<span style="color: #ff0000;">range=1d</span>/csv/
Where the ^nsei denotes the yahoo finance symbol for Nifty
For Example by replacing ^nsei with the ACC.NS(yahoo finance symbol for ACC we could be able to get the realtime intraday data for yahoo feed in csv format(1 min data). Where the Yahoo finance symbol for nse stocks can be found from Yahoo Symbol Lookup
and range=1d denotes intraday data feed and range=5d denotes past 5days data feed
The below link give the realtime data feed for past 5days which could be used as a source to backfill your chart for the past 5 days.
Just those who have little stuff with .Net programming could decode this csv data Plus writing few lines of Amibroker Dll Plugin will make you able to feed these free real time data into your amibroker software at free of cost which most of the traders are wasting time in paying for a realtime software
Will do some more Reverse Engineering about the real time feed fetching some time later on