On similar lines, the broader NSE Nifty dropped 320.55 points or 1.77 per cent to end at 17,806.80. From the Sensex pack, Tata Steel plunged nearly 5 per cent. Other major laggards were Tata Motors, State Bank of India, Bajaj Finserv, Reliance Industries, Wipro, IndusInd Bank, Larsen & Toubro and Maruti Suzuki.