Mumbai, July 25 -- The key equity indices traded with modest losses in morning trade. The Nifty traded below the 24,900 level. Auto shares declined after advancing for two previous trading sessions.

At 10:30 ST, the barometer index, the S&P BSE Sensex, tanked 550.64 points or 0.67% to 81,628.81. The Nifty 50 index declined 188.05 points or 0.75% to 24,872.50.

In the broader market, the S&P BSE Mid-Cap index fell 0.84% and the S&P BSE Small-Cap index tanked 1.17%.

Market breadth remained weak, with 1,153 stocks advancing and 2,381 declining on the BSE. Meanwhile, 191 stocks ended the session unchanged.

Numbers to Track:

The yield on India's 10-year benchmark federal paper rose 0.03% to 6.331 from the previous close of 6.329.

In the f...