NSE Events is a python application that takes the RSS feed from NSE website (http://www.nseindia.com) and parses it and creates a calendar of events on Google Calendar.
You can setup a job to update your google calendar with events from NSE. I wrote this to solve my problem where I didnt have visibility to when corporate events were going to be applicable to stocks I own. Since this dumps all the items to a SQLite database, you can sort and search for specific stocks.
Get hold of a low power PC and set it up as a batch job to run once a day. As of now (April 2012) NSE updates dont seem to happen more frequently than once a day. It will keep your calendar updated with latest company news.
please see license.txt.