Sensex crashed over 900 points on Friday and was trading at 73,696.45, while Nifty tumbled over 200 points to trade at 22,278.90 at market open. This comes amid market uncertainty due to US President Donald Trump's tariffs and a decline in Wall Street indices. ITC, Asian Paints, UltraTech Cement and Axis Bank were among the top losers on Sensex.