New Delhi, Jan. 31 -- Indian stock markets opened flat in the green on Friday as concerns over potential U.S. tariffs on BRICS nations kept investors cautious.

The Nifty 50 index opened at 23,296.75, gaining 47.25 points (0.2 per cent), while the BSE Sensex opened at 76,888.89, rising 129.08 points (0.17 per cent).

Market experts highlighted the uncertainty surrounding the Trump administration's possible tariff announcement on February 1, which could impact global trade and inflation. If the tariffs are delayed, risk-on sentiment may improve.

Ajay Bagga Banking and Market Expert told ANI "Trump Tariffs loom as the risk for markets. Trump administration may announce some tariffs on Feb 1. Markets are on edge given the impact on supply c...