The 30-share index was trading 175.29 points, or 0.44%, lower at 39,276.78 at 9.30 a.m. Similarly, the broader NSE Nifty was quoting 50.20 points, or 0.42%, down at 11,773.10.

Investors were also on edge ahead of the release of wholesale price inflation data, scheduled to be announced later in the day, traders said.

Investors were also cautious ahead of the release of inflation and factory output numbers, traders said.

After rallying nearly 300 points during the day, the BSE gauge settled 165.94 points, or 0.42 per cent, higher at 39,950.46. The index hit an intra-day high of 40,066.31 and a low of 40,066.31.

After hitting a peak of 39,979.48, the 30-share index was trading 272.07 points, or 0.69 %, higher at 39,887.97. Similarly, the broader NSE Nifty spurted 76.25 points, or 0.64 %, to 11,946.90.

The 30-share index was trading 211.04 points, or 0.53 per cent, lower at 39,318.68, and the broader Nifty slipped 34.25 points, or 0.29 per cent, to 11,809.50.

After scaling lifetime highs in the previous session, the 30-share index was trading 15.27 points, or 0.04%, lower at 40,252.35, and the broader Nifty slipped 10.10 points, or 0.04%, to 12,077.90.

The 30-share index was trading 203.82 points, or 0.51 per cent, higher at 39,918.02. Similarly, the broader NSE Nifty spurted 48.35 points, or 0.41 per cent, to 11,971.15.

In a highly volatile session, the benchmark BSE Sensex ended 118 points lower, dragged by losses mainly in auto and financial stocks.

After hitting a high of 40,119.81, the 30-share index was trading 271.12 points, or 0.68 per cent, higher at 40,103.09.