The stock tanked 5.11 per cent to settle at Rs 342.90 on the BSE. During the day, it lost 5.56 per cent to Rs 341.25.
At the NSE, it dipped 5.27 per cent to end at Rs 342.25.
Led by the sharp fall in the stock, the company's market value dipped by Rs 1,791 crore to Rs 33,302.98 crore.
The stock was the biggest loser among the blue-chips on both Sensex and Nifty.
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The domestic steel giant, counted among the top-10 steel companies globally, had posted a net profit of Rs 1,035.87 crore in the year-ago period, it had said in a BSE filing.
Total consolidated income declined by 21 per cent to Rs 33,666.18 crore in the last quarter of 2014-15 compared with Rs 42,428.05 crore in the same quarter of 2013-14.
For the 2014-15 fiscal, the firm posted a consolidated net loss of Rs 3,925.52 crore. It had reported a net profit of Rs 3,594.89 crore in 2013-14.
In the stock market, the BSE benchmark Sensex ended at 27,809.35, down 27.86 points.