Sensex tumbles 645 points on global sell-off, rising U.S. bond yields
The 30-share BSE Sensex tanked 644.64 points or 0.79% to settle at 80,951.99 with 27 of its constituents ending lower. File | Photo Credit: The Hindu Benchmark Sensex declined by nearly 645 points while Nifty retreated to 24,600 level due to selling in IT, …