The Indian equity benchmarks snapped their three-day winning streak on Thursday as investors booked profits in recent outperforming index heavyweights like Reliance Industries, HDFC Bank, Infosys, Kotak Mahindra Bank and Larsen & Toubro as March futures and option contracts expired on the last day of current fiscal year. The benchmarks opened higher but succumbed to profit booking in last hour of trade. The Sensex fell as much as 405 points from day's high and Nifty 50 index touched an intraday low of 17,435 after hitting an intraday high of 17,560.