Mumbai, Sep 26 (IANS): Extending losses for the sixth consecutive session, key Indian equity indices on Tuesday provisionally closed marginally in the red as weak global cues on the back of rising tensions in the Korean Peninsula dented investors' risk-taking appetite.

According to market observers, the key indices were pulled lower as investors booked profits in telecom, Teck (technology, media and entertainment) and FMCG stocks. Some losses were pared by healthy buying in metals and realty stocks.

The wider 51-scrip Nifty of the National Stock Exchange (NSE) was down 1.10 points or 0.01 per cent to provisionally close at 9,871.50 points (at 3.30 p.m.).

The 30-scrip Sensitive Index (Sensex) of the BSE, which opened at 31,685.81 points, closed at 31,599.76 points -- down 26.87 points, or 0.08 per cent, from its previous day's close at 31,626.63 points.

The Sensex touched a high of 31,693.59 points and a low of 31,455.65 points during the intra-day trade so far.

In contrast, the BSE market breadth was bullish -- with 1,503 advances and 1,018 declines.

On Monday, the benchmark indices descended sharply on the back of weak global cues, profit booking and expensive valuations.

The Nifty50 slipped by 91.80 points or 0.92 per cent to close at 9,872.60 points, while the Sensex closed at 31,626.63 points -- down 295.81 points or 0.93 per cent.