In choppy deals, the Bombay Stock Exchange benchmark Sensex lost over 415 points at midsession on Monday on emergence of profit selling at higher levels in banking and capital good sectors.
The 30-share Sensex, which opened the day with a loss of nearly 177 points, fell further on heavy selling by funds and recorded a loss of 414.66 points at 19,561.57 at 1330 hrs.
Similarly, the National Stock Exchange index Nifty tumbled by 96.80 points to 5,835.60.
The selling pressure was more confined to banking and capital goods sectors, which had recorded handsome gains in last few trading sessions.
Banking index fell by 252.47 points at 10,989.60 and capital goods index by 170.07 points at 20,216.34. Oil and gas sector index lost 212.92 points at 11,523.51 the segment major ONGC stocks fell sharply.