Mumbai, Aug. 28 -- Headline equity indices opened sharply lower in early trade after the United States imposed an additional 25% tariff on Indian imports, which came into effect a day earlier. The Nifty traded below the 24,550 mark. All the sectoral indices on the NSE were in the red.

At 09:30 IST, the barometer index, the S&P BSE Sensex, dropped 611.82 points or 0.76% to 80,176.58. The Nifty 50 index tumbled 181.10 points or 0.74% to 24,530.85.

In the broader market, the S&P BSE Mid-Cap index slipped 0.94% and the S&P BSE Small-Cap index fell 0.99%.

The market breadth was weak. On the BSE, 890 shares rose and 2,107 shares fell. A total of 194 shares were unchanged.

Foreign portfolio investors (FPIs) sold shares worth Rs 6,516.49 cror...