NSEAPI has now been updated with the following features:
Critical Changes however are:
* The widget codes have been updated, so you will need to generate a new one. [-]
* The widgets can now work on localhost so sandbox is no longer required [+]
* Addition of stock Symbols to the widgets, different from share symbols [+]
* The new/marquee scroller has been altered a bit to reduce the dragging effect it has at certain times, though some people might not have noticed this [+]
* API was renamed to Indeces API, and stock symbol has been added as well [++]
* Addition of Stock (value) api has to provide the latest price of a stock symbol [++]
* Addition of Chart API which allows you to get a listing of stock values as far back as the year 2001 [+++]
* The Chart API can be integrated with Graph tools to generate graphs such as the ones shown on the homepage [+++]
* The developers section has been documented properly to reduce questions arising from the use of the API [+++]

And oh, the url is http://nseapi.com

is your api free? How can i acess it from java?

The API is free - you would have known if you visited the website. You need to learn how to parse remote url is java.