After gaining 633.49 points in the previous four sessions, the S&P BSE Sensex rose 78.95 points, or 0.38 percent, to 20,607.54. The index had closed at 20,646.64 on September 19.
The gauge touched the day's high of 20,645.94 on steady inflow of foreign funds, lending support to blue-chip stocks, mainly the information technology sector, on expectations a global economic recovery would increase demand for the software business.
The broader-based CNX Nifty index on the National Stock Exchange rose 16.5 points, or 0.27 percent to 6,112.70. The SX40 index on the MCX Stock Exchange was at 12,269.75, up 51.88 points or 0.42 percent.
Buying picked up even as the government said wholesale price inflation came in at 6.46 percent in September, compared with 6.1 percent in the previous month.

Industrial production expanded 0.6 percent in August from 2.8 percent in July, the government said on October 11.
Infosys rose 1.52 percent to Rs 3,323.50 after reporting earnings on October 11. Tata Consultancy Services jumped 4.27 percent to Rs 2,214.65 ahead of its results. The IT sector index was the biggest gainer, advancing 2.32 percent.
Heavyweight Reliance Industries was up 0.84 percent to Rs 870.25 before its second-quarter results later today.
Of the 30 Sensex shares, 13 gained, including Wipro, Tata Motors, HDFC Bank, Hero MotoCorp, Dr Reddy's Laboratories, Coal India, State Bank of India, Sesa Sterlite, Sun Pharma and Bajaj Auto.


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