Is the separate Margin Blocked for Buy and sell Orders?
No, margin is blocked on the order, which attracts higher Margin out of the Buy or Sell order. If you have placed both a buy and sell order in the same contract Margin blocked would be the maximum of the two orders. Illustration As in the above illustration the sell order attracts a margin of (a) Rs 96000/-. If you place a Buy order in the same Contract OPT-ACC-30-May-2002-150-CA 3000 at Rs 20/- it would attract margin of (b) Rs 60,000/-. Margin blocked would be the higher of the two margins (a) or (b) i.e. Rs 96,000/-.