<ul><li>The Nifty 50 and the Sensex have tumbled over 3%, prompting concerns about a trading halt.</li><li>According to NSE rules, trading halts kick in if either the Nifty or the Sensex falls 10%, 15%, or 20% in a session.</li><li>A 10% fall before 1 pm triggers a 45-minute halt, while a 15% drop after 2 pm halts trading for the rest of the day.</li><li>A 20% plunge stops trading entirely, regardless of when it occurs.</li></ul>

Nifty, Sensex Tumble Over 3%, Here's What Happens If Circuit Limits Are Hit

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