"not able to understand from where do i get data,from where do i retrieve trdae details of COMMODITIES... totally confiuos .... m a fresher pls me..."
If this is a homework task, and you aren't going to involve any real money, then look for an RSS feed from your chosen countries markets: you may have to pay for them depending on the source, or you could do a website scrape on a commodities trading page.
If this is for work, then you should go to your boss, admit you got the job under false pretences and beg for forgiveness. This is not a real-world project for beginners. The money is real, the risks are real, and it would be far, far too easy to make a mistake and lose your company an absolute fortune!