The Bombay Stock Exchange benchmark index Sensex fell by over 151 points in early trade on Monday on selling by foreign funds and retail investors, triggered by weak Asian markets.
The 30-share sensitive index (Sensex), which lost 76.41 points on Friday, slid down by another 151.23 points at 13,278.25 points in the first five minutes of trading.
Similarly, the National Stock Exchange index Nifty fell by 39.60 points at 3,813.20 points.
Stock brokers said reports of weakening trends at Asian stock markets dampened the trading sentiments here, triggering selling pressure.
The major weak spots were heavy-weights Reliance Industries, Bajaj Auto, Grasim Industries, Hero Honda, Maruti Udyog, Larsen and Toubro, Dr Reddy's, Reliance Communications, Reliance Energy, Tata Steel, HDFC Bank, Cipla and ITC Ltd.