Stock market today: Nifty 50, Sensex end flat as income tax cut fails to cheer D-Street; PSU, defence stocks drag

Sensex and Nifty 50 closed flat after Finance Minister Nirmala Sitharaman's Budget speech, with high volatility. Sensex rose 5.39 points to 77,505.96, while Nifty fell 26.25 points to 23,482.15. Key sectors like FMCG and Realty saw gains, while PSU Bank and Metals struggled.