The Sensex on Monday ended down 143.84 points or 0.6 percent at 26121.400 and the Nifty slipped 39.10 points at 7915.20.
Shares such as Tata Motors, Maruti, ITC, Vedanta and SBI were among the top gainers while Sun Pharma, BHEL, Dr Reddy's Labs, Wipro and ICICI Bank were losers in the Sensex.
The market's nervous trend was an adverse effect of the shocking defeat of the BJP-led NDA in the Bihar assembly polls.
