Mumbai: The Bombay Stock Exchange’s (BSE) Sensex added over 39 points to rise further in opening trade on Tuesday. The rising trend is due to continued buying by funds and retail retail investors amid a firming trend in the US market.

Sensex, which has gained over 318 points in the previous two sessions, suddenly surged ahead by 39.29 points, or 0.21 percent, to 18,568.25 on Tuesday.

Stocks of the oil and gas, metals, capital goods and healthcare sectors were trading in the positive zone, which helped the Sensex maintain the upward trend.

Similarly,the broad-based National Stock Exchange Nifty index moved up marginally by 1.80 points, or 0.03 percent, to 5,552.90.

Brokers said the trading sentiment remained better on the back of a firming trend in the US market, which closed in the positive zone in the previous session, but participants adopted a cautious approach on fears of a possible hike in fuel prices.