Mumbai, January 6: The Indian markets witnessed a crashed by 2 per cent each amidst the geopolitical tensions US-Iran and spike in global oil prices. The S&P BSE Sensex on January 6, 2020, crashed 764.38 points to 40,613.96 during the intraday, while NSE Nifty 50 fell to 11,974.20 down 196.40 points. The index Sensex closed at 40,676.63 down by 787.98 points or 1.90 per cent, whereas on the NSE, the Nifty50 index ended at 11,993.05 down by 233.60 points or 1.91 per cent.