Mumbai, Jan. 30 -- Domestic stock markets opened under heavy selling pressure on Friday amid heightened global market volatility, triggered largely by sharp swings in gold and silver prices.

Investor sentiment remained weak as markets reacted to the steep decline and sudden rebound in precious metals, along with broader uncertainty across global asset classes.

The Nifty 50 index opened at 25,247.55, slipping 171.35 points or 0.67 per cent, while the BSE Sensex began the session at 81,950.05, down 616.32 points or 0.75 per cent.

The early weakness reflected caution among investors as global markets continued to witness sharp fluctuations.

Ajay Bagga, Banking and Market Expert, told ANI, "Gold and Silver prices plunge 9-12 per cent, the...