Nifty IT index drops 4% this week, hit by persistent demand worries in the U.S. and Europe despite positive earnings reports.

• Infosys falls 4% post-earnings; TCS and HCLTech down 1.4% and 3.2%, reflecting broad sector pressure.
• Persistent, Mphasis, and Coforge led weekly losses, plunging 6.6%, 6.8%, and 9% amid weak global demand signals.
• Nifty IT down 17.5% YTD, worst-performing sector; Nifty 50 gains 5.2% in comparison.