Among sectoral indices, FMCG, Pharma and PSU banks are trading higher. Wall Street sank on Monday after China defied Washington by announcing retaliatory tariffs, the latest salvo in the two countries' increasingly belligerent trade war, sending investors fleeing equities for less risky assets. Shares in Asia extended losses on Tuesday following sharp falls on Wall Street overnight, the yen strengthened and US Treasury yields ticked lower as the trade war between China and the United States escalated.