A full list of AmiBroker officially supported data sources is here: http://www.amibroker.com/guide/h_quotes.html
As to NSE / BSE data - there are several datasources that you can use to get data for NSE/BSE. First of all - you can automatically download FREE quotations from Yahoo Finance service (with use of AmiQuote downloader)
The procedure shown in the tutorial video: http://www.amibroker.net/video/amiquote2.html
All you have to do is to add apropriate suffix to your symbols (to make Yahoo recognize that you require Indian symbols). That will be:
.NS - National Stock Exchange of India (NSE)
.BO - Bombay Stock Exchange (BSE)
So the symbols will look like:
ACE.NS - ACE Laboratories Ltd
AEGS.NS - Aegis Logis Ltd
There are also many other sources that you can use:
What about Nest Plus, GDFL, etc data sources?
These are independent 3rd party creations. We do not provide help with configuration of 3rd party data sources. You need to ask the 3rd party data vendor for help with configuration with their data source.
We only can help if data source is on our official list of supported data sources.