The Sensex fell 472.27 points (0.63%) to 74,091.66, while the Nifty 50 declined 136.90 points (0.59%) to 23,014.20, reflecting renewed pressure on investor sentiment amid escalating geopolitical tensions The post Sensex Plunges 500 Points, Nifty at 23,014; Coal India, NTPC Green among top picks; Know which stock to avoid on March 16 appeared first on News24 .