Mumbai, Jan 15 (Agencies): Disappointing Quarter three results from Infosys Technologies pulled down the Bombay Stock Exchange (BSE) benchmark Sensex by another 831 points or 4.22 per cent.

All indices ended in red due to heavy selling pressure from investors. Capital Goods, Realty, Banking, Oil&Gas, PSU, Power sectors were the major contributors to the Sensex fall.

"The inflation rate for December has turned out to be much higher than what was originally expected. Given the present situation, perhaps some tightening on the part of the Reserve Bank may be required," said Prime Minister's Economic Advisory Council Chairman C Rangarajan.

The overall inflation for December, measured on the basis of wholesale prices, increased to 8.43 per cent in December, from 7.48 per cent in November.

Foreign Institutional Investors (FIIs) continued their selling spree during the week.

Banking pivotals declined on rate hike worries. India's second largest private sector bank by market capitalization HDFC Bank tumbled 9.49 per cent. India's largest commercial bank by branch network State Bank of India fell 3.75 per cent and largest private sector bank by market capitalisation ICICI
Bank fell 3.57 per cent.