Benchmark indices tanked on Tuesday following a sell-off in index majors and weak Asian. The 30-share Sensex fell 736 points to settle at more than a month's low of 72,012 and the broader Nifty slumped 238 points to close at 21,817. Stocks that were in focus included names like Patanjali Foods, which fell 4.24%, Tata Investment, which declined 5%, and JBM Auto, whose shares rose 1.5% on Tuesday.