Zydus Wellness: Up 9% at open, extending 25% year-to-date gains on robust trading volume. HFCL: Up 5%, continuing its 252% rally since January on telecom infrastructure optimism. Balrampur Chini Mills: Up 3.5%, adding to 63% year-to-date gains in the sugar sector. Defence plays: Bharat Electronics and Larsen & Toubro among Sensex winners, bucking the broader trend. IT sector: Nifty IT...