Stock market update: These stocks plunged up to 4 per cent on BSE
In the Nifty index, 41 stocks settled in the green and 9 in the red on Friday.

Stocks such as Rajesh Exports (down 3.46 per cent), GE T&D India (down 3.14 per cent), IDBI Bank (down 3.13 per cent), HeidelbergCement India (down 2.39 per cent) and SKF India (down 2.06 per cent) tumbled up to 3 per cent.
Benchmark indices Sensex and Nifty extended the rally for the second straight session on Friday, buoyed by gains in bank, energy, financial, auto and teck counters.
Recovering rupee, softening crude prices, across-the-board buying and mixed global cues gave a boost to market sentiment.
The Sensex index closed 262 points, or 0.76 per cent, up at 34,925, while Nifty finished Friday's trade with a gain of 91 points, or 0.87 per cent, at 10,605.
Overall, 24 stocks remained up in the Sensex index, while 7 declined.
In the Nifty index, 41 stocks settled in the green and 9 in the red on Friday.
Bharti Infratel, Tech Mahindra, Coal India, Asian Paints, State Bank of India, ICICI Bank and Tata Consultancy Services remained the top losers in the Nifty index.
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