Dan bro' that could be little complicated for him to understand
Amit since you need EOD data, I am assuming that all you want to do is charting.. if that is so then you can do EOD charting here for free.. not much TA tools though but basic charting is free
..but if you want to download all the bhavcopy from NSE & convert them into your format then I do have Derivatives bhavcopy in CSV format since 1st Jan 2001 till 18 Sep. 09 all downloaded and packed in ZIP file here
You could also download cash market data from NSE and here is a tiny bhavcopy downloader that I had created. It will generate a list of bhavcopies which can be imported in any Download Accelerator and downloaded when you want to.