India, April 23 -- Benchmark equity indices Sensex and Nifty tumbled nearly 1 per cent on Wednesday, snapping a three-day gaining streak due to heavy selling in IT stocks and an uptick in crude oil prices.

The 30-share BSE Sensex tanked 756.84 points or 0.95 per cent to settle at 78,516.49. During the day, it slumped 831.03 points or 1.04 per cent to 78,442.30.

The 50-share NSE Nifty dropped 198.50 points or 0.81 per cent to end at 24,378.10.

Foreign fund outflows and fears of prolonged instability in West Asia also dented market sentiment.

Among 30-Sensex firms, HCL Tech tumbled the most by 10.85 per cent after its March quarter earnings failed to cheer investors. HCL Tech reported a 4.20 per cent on-year rise in consolidated net pro...