Thanks for reply Mr.Prabhat but i don't have knowledge about link and software..will you explain exatly nse gives it stock wise not maturity wise means what ?...if i will understand what type of data you want, may be i can help u for this , in nse fobhavcopy there is expiry date and in nse get quote there also have expiry date is this not enough for you ? sorry i m Zero about software so may be like foolish question.