Stock market today: The NSE Nifty declined by 108.65 points or 0.42 per cent to finish at 25,959.50. The BSE Sensex shed 331.21 points or 0.39 per cent to close at 84,900.71, after falling as much as 521.81 points or 0.61 per cent to 84,710.11 during intraday trading.