Mumbai, Sept. 2 -- The key equity benchmarks pared all gains and traded with moderate losses in mid-afternoon trade, despite robust GST collection in August. Investors are closely monitoring developments on U.S. tariff measures, FII outcome and monthly auto sales data. The Nifty slipped below 24,550 mark.

FMCG shares witnessed buying demand for third consecutive trading session.

At 14:25 IST, the barometer index, the S&P BSE Sensex declined 271.49 points or 0.33% to 80,092.15. The Nifty 50 index fell 79.10 points or 0.33% to 24,540.60.

The broader market outperformed the headline indices. The S&P BSE Mid-Cap index rose 0.22% and the S&P BSE Small-Cap index advanced 0.52%.

The market breadth was strong. On the BSE, 2,421 shares rose an...