The Bombay Stock Exchange benchmark Sensex crashed over 474 points in early trade on Wednesday on heavy selling by funds, triggered by weak global trend.
The BSE-30 share index, which gained 290 points on Tuesday, plunged 474.91 points at 15,076.08 in the first five minutes of trading.
The wide base National Stock Exchange's Nifty dropped 146.05 points at 4,382.80.