The benchmark Sensex gave up early gains to end 266 points lower on Monday while the Nifty cracked below the 9,800 mark, pulled down by heavyweight Infosys and other blue-chips amid a lower opening in Europe.

The IT sector faced the backlash following Vishal Sikka’s surprise resignation as Infosys CEO. The software giant extended losses by falling 5.37% despite Rs 13,000 crore share buyback announcement.
The stock remained the biggest loser among blue-chips on both the key indices for yet another session.
The 30-share Sensex ended 265.83 points lower, or 0.84%, at 31,258.85. The gauge had lost 270.78 points in the previous session on Friday.
The broader NSE Nifty moved between 9,884.35 and 9,740.10, before ending down 83.05 points, or 0.84%, at 9,754.35.