Registering its third day of decline, the 30-share BSE benchmark Sensex dropped 197.97 points or 0.25 per cent to settle at 77,860.19, in a volatile trade. During the day, it lost 582.42 points or 0.74 per cent to 77,475.74. Registering its third day of decline, the 30-share BSE benchmark Sensex dropped 197.97 points or 0.25 per cent to settle at 77,860.19, in a volatile trade. During the day, it lost 582.42 points or 0.74 per cent to 77,475.74. Zee News :Business