The Indian equity benchmarks extended losses after staging a gap down opening on Tuesday mirroring losses in global markets. Infosys, HDFC Bank, ICICI Bank, HDFC, HDFC and ITC were among the top drags on the Sensex. The Sensex fell as much as 385 points and Nifty 50 index dropped below its important psychological level of 16,100. Asian shares fell Tuesday after a slump on Wall Street erased recent gains. U.S. futures and oil prices also declined.