Snapping its four-day losing streak, equity benchmark Sensex rallied over 1,627 points on Friday in line with global markets as Governments across the world took drastic measures to combat the economic blowback of Covid-19. After starting on a volatile note and swinging over 2,485 points, the BSE barometer ended 1,627.73 points or 5.75 per cent higher at 29,915.96.