Mumbai, Feb. 3 -- The domestic benchmark indices opened sharply lower on Monday, as Asian markets tumbled after US President Donald Trump announced trade tariffs which are set to come into effect from Tuesday.

At around 9.33 a.m., the Sensex was trading over 400 points down at 77,103.22 while the Nifty was down 154 points at 23,328.00.

At the opening bell, the Sensex shed 710 points or 0.88 per cent at 76,821.50. On the NSE, all sectors declined with Nifty Metal and Nifty Realty as the worst performing sector.

Hong Kong's Hang Seng Index was down 1.3 per cent, Japan's Nikkei 225 was 2.4 per cent lower, South Korea's KOSPI tumbled 3 per cent and Australia's ASX 200 was 1.8 per cent lower.

On Saturday (US time), Trump announced he will ...