Hi!
There is a website [login to view URL] which has a list of all the NGOs in India. I tried to copy this website but there was no good since it is using Javascript/php based links using Get method to call URLs. There are individual page for a NGO and all of them have the same URL.
An example would be to simply view this page [login to view URL] and click on any link, you will get to know how this site it structured.
Let me know if you can help.