Bangalore: The BSE benchmark Sensex rose by marginally by over 28 points in early trade on emergence of buying by funds and retailers amid a mixed trend on Asian bourses.

The 30-share barometer, which had lost 67 points in the previous session, recovered by 28.30 points, or 0.16 percent, to 17,811.51.

All sectoral indices were trading in the positive zone with gains of up to 0.90 percent.

Similarly, the wide-based National Stock Exchange index Nifty inched up by 7.40 points, or 0.14 percent, to 5,394.10.

Brokers said fresh buying by funds and retail investors amid a mixed trend in Asian bourses mainly influenced the trading sentiment.

In Asian region, Japan's nikkei index was up by 0.34 percent, while Hong Kong's Hang Seng index traded marginally lower by 0.04 percent in opening trade.

The U.S. Dow Jones industrial average index ended 0.77 percent higher in August 24th trade.

Markets are likely to be volatile and may witness bouts of profit-booking this week ahead of the GDP data and the expiry of August's futures and options contracts amid political strife that has stalled economic reforms.