Tracking a weak global trend, the Bombay Stock Exchange benchmark Sensex plunged by 202 points in early trade on Thursday on selling by funds in heavy-weight stocks led by banking and reality sectors.
The 30-share index, which had gained 551.35 points on Tuesday, tumbled by 202.08 points to 14,847.78.
Similarly, the wide-based National Stock Exchange's index Nifty fell by 61.25 points to 4,442.75.
Stock brokers said reports of subdued trends in global markets dampened the trading sentiments here.
Meanwhile, Hong Kong's benchmark Hang Seng index moved down by 0.91 per cent.