This document outlines an expiry derivative strategy for the Nifty index with a maximum profit potential of Rs. 8261.25 and maximum loss of Rs. 2988.75. The strategy involves buying and selling call options on the Nifty with a strike of 8100, 8250, and 8400, expiring on January 25th, 2017. A pay-off table and chart are provided to illustrate how profits and losses will be impacted by changes in the underlying Nifty index level. A margin of Rs. 90035 is required to implement this long call butterfly strategy.