Mumbai, July 28 - A key index of the Indian equities markets was 102 points in the red about 90 minutes after opening bell Tuesday.

At 11.04 a.m., the 30-scrip benchmark index of the Bombay Stock Exchange (BSE), the Sensex, which opened higher at 15,428.5 points, was at 15,272.57 points -- 102.47 points or 0.67 percent lower than Monday's closing figure.

The S&P CNX Nifty of the National Stock Exchange (NSE) too was trading in the negative terrain at 4,541.1 points, down 068 percent.

However, broader market indices were doing better with the BSE midcap index trading 0.64 percent higher and the BSE smallcap index moving up 1.16 percent.

Of the 13 sectoral indices on the BSE, those for realty, power and PSU were gaining the most, while banking and IT scrips came under selling pressure.

The market breadth was positive, with 1,287 stocks rising compared to 804 declining. Seventy-five remained unchanged.