Indian markets opened weak Friday, with Nifty trading under 24,500 amid tariff concerns. Analysts flagged 24,900 as a key hurdle, citing ₹5,000 crore FII selling and MSCI's India weight cut, which may trigger $20-25 billion outflows. Resistance lies at 24,800-24,900, with support near 24,400. Experts advise caution and stock-specific trades.