it's the expiry effect

only five trading sessions are left for november expiry .the markets will not give up the buyers of call and put will not benefit much all the big traders are very very smart ,the market is not giving up at all every time it comes down there is a sharp pull back. from last four days this same drama is taking place everyday.market is going nowhere just jumping a little up and down and coming back to same position eating away the premium of call and put of nifty options .the best strategy i feel is to buy one lot of call or put according to the market direction and alternately sel one lot of the next strike price .today i had one trade i bought 4900 put nifty option and sold 4800 put nifty option alternately .i think this makes the trade little safe , as we are protected against time decay