Benchmark indices Sensex and Nifty declined from day's high due to various reasons, including profit booking and selling in IT shares. At 1:13 pm, the Sensex was down 230.03 points or 0.31% at 73,376.72, and the Nifty was down 46.95 points or 0.21% at 22,706.25. About 2,667 shares advanced, 1,164 shares declined, and 162 shares were unchanged. Key reasons behind market decline Profit booking emerged at higher levels as markets rose for second straight day.