Market opens on a firm note; breadth strong 0 31.07.2024 07:07 Business Standard At 09:28 IST, the barometer index, the S&P BSE Sensex, was up 174.22 points or 0.24% to 81,629.62. The Nifty 50 index rose 53.35 points or 0.21% to 24,910.65.