Mumbai: The BSE benchmark Sensex opened over 114 points higher in opening trade on Monday ahead of Budget 2011-2012. The sensex also increased due to the buying by foreign funds and retail investors.

The 30-share index of the Bombay Stock Exchange, which gained 68.50 points in the previous session, rose by another 114.07 points, or 0.64 per cent, to 17,814.98 in the first few minutes of trade on Monday.

Similarly, the wide-based National Stock Exchange Nifty index moved up by 33.40 points, or 0.62 per cent, to 5,336.95.

Brokers said buying by funds and retail investors on expectations of an investor-friendly Budget for the year 2011-12 will influence the trading sentiment.

Meanwhile, Hong Kong's Hang Seng index was up by 0.39 per cent, while Japan's Nikkei index was down 0.22 per cent in early trade on Monday.