Mumbai: The Bombay Stock Exchange benchmark Sensex declined by over 97 points in opening trade on Tuesday on continued selling by funds and retail investors, tracking a weak trend on other Asian bourses.

The 30-share Sensex, which lost 108.13 points in the previous session, fell by 97.45 points, or 0.58 percent, to 16,615.88 in opening trade on Tuesday.

In a similar fashion, the wide-based National Stock Exchange Nifty index moved down by 35.15 points, or 0.70 percent, to 4,982.05.

Information and technology, banking, realty and metal stocks bore the brunt of the selling pressure, dragging down the 30-share Sensex.

Brokers said increased selling by funds and retail investors, tracking a weakening trend in the rest of Asia amid renewed fears that the euro zone sovereign debt crisis is worsening, dampened the trading sentiment here.

In the Asian region, Hong Kong's Hang Seng Index fell by 1.02 percent, while Japan's Nikkei Index shed 1.40 percent in morning trade on Tuesday.