Mumbai: Benchmark equity indices Sensex and Nifty tumbled in early trade Friday after a three-day rally, dragged by IT stocks and caution ahead of the Budget presentation February 1. Fresh foreign fund outflows and weak trends in global equities also added to the markets’ weakness during initial trading. The 30-share BSE Sensex tumbled 619.06 points to 81,947.31 in opening trade. Geopolitical issues continue to plague global trade with continuous threats of tariff weaponisation by Trump. In Asian markets, South Korea’s Kospi traded higher, while Japan’s Nikkei 225 index, Shanghai’s SSE Composite index and Hong Kong’s Hang Seng index quoted lower.