The Indian equity benchmarks erased intraday gains to close on a subdued note on the back of selling pressure in Reliance Industries a day ahead of its earnings. Weakness in HDFC Bank, IndusInd Bank, Sun Pharma and Ultratech Cement also added to weakness in the markets. Investors turned to profit booking in intraday deals as they turned cautious amid rising inflation and global central banks turning hawkish and raising interest rates, analysts said. The Sensex fell as much as 953 points from day's highest level and Nifty 50 index fell below its important psychological level of 17,700 at the day's lowest level.