When data quality is prime importance, for the Indian retail trader, best option is eSignal(costly) considering it supported by almost all charting platforms. Another option is qotecenter from Reuters (now MetaStock XENITH) but it supports metastock only.
GDFL is good only if you require 1 minute candle back fill, no tick data back fill
I think you don’t know how to do this. Well this traderji.com is a bull shit site. Even i have posted the same question and till now they haven’t answered. Before sending this link to me have you tried their method and have been successful in doing?
if it is amibroker then Nest2Ami profitional by aamadmisoftware is very low cost and the do not provide any data it is only a link between nest and ami.