Mumbai: The Bombay Stock Exchange benchmark Sensex rose by 140 points to cross the 17,000-mark in early trade on Wednesday on sustained buying by funds amid a firming Asian trend.

The 30-share BSE index, which gained 149.48 points, or 0.89 percent, in the previous trading session, rose by another 140.32 points, or 0.83 percent, to 17,003.13 in the first five minutes of trade on Wednesday morning.

All the sectoral indices were trading in the positive zone, with gains of up to 1.74 percent.

Likewise, the wide-based National Stock Exchange Nifty Index moved up by 85.75 points, or 1.70 percent, to 5,102.95.

Brokers said the trading sentiment was bullish on the back of a firming trend in the Asian region.

Hong Kong's Hang Seng Index was up by 1.14 percent, while Japan's Nikkei rose by 1.44 percent in morning trade on Wednesday.