The document outlines an expiry derivative strategy that is bearish on the market. It recommends selling 400 shares at Rs. 1636.90 and selling 400 put options at a strike of Rs. 1600 for a premium of Rs. 16.30. This would generate a maximum profit of Rs. 21,280 with an approximate loss of Rs. 2,720 if the stock falls below the stop loss level of Rs. 1660. The strategy expires on September 29, 2016 and has a required margin of Rs. 119,500.