Sensex, Nifty Today: The Indian stock market witnessed a strong rally on Monday with benchmark indices climbing on the back of in-line Q4 results. BSE Sensex was trading above the psychological 80k level mark after a 1,000-point surge. NSE Nifty followed cues and surpassed 24,300 level. Sectorwise, Nifty PSU Bank came out on top as the best-performing index, surging over 2.4% whereas the IT index remained under stress owing to turbulent macros.