1) Buy 230 Dec calls , sell 250 Dec calls --- My preference. 2) Buy Dec future , Sell 230 Dec call 3) Sell Dec 240 or 250 Put , Buy 220 Put 4) Buy 2 lot 230 call , Buy 1 lot 230 put
check what strategy suits you ,And execute your trade . Beware lot size is 3500 , so risk is high , manage your risk , If not enough capital don't take F&O trade. (Consult your financial adviser before taking any trade )