Dealing in Nse stocks of India

1. http://www.sebi.gov.in/sebiweb/home/document_detail.jsp?link=http://www.sebi.gov.in/cms/sebi_data/docfiles/20615_t.html
2. https://www.google.co.in/?gfe_rd=cr&ei=05KfU8SwB6bM8gfnsIHQBA&gws_rd=ssl#q=nse+stock+screener+intraday+free+and+with+no+obligation
3. http://www.nseindia.com/live_market/dynaContent/live_watch/equities_stock_watch.htm