Sensex falls over 400 pts, Nifty below 25,650; metal, pharma stocks bleed

Benchmark indices Nifty and Sensex opened lower on Thursday, ending a three-day rally as investors booked profits at higher levels. Metal and pharma stocks were the biggest decliners, with the broader market also experiencing a downturn. The BSE Sensex dropped over 200 points, while the Nifty 50 fell below 25,700.