Shares of National Aluminium Company Limited (NALCO) surged nearly 9 percent after posting robust Q2 results driven by higher alumina realizations and lower input costs. Torrent Pharma also rallied on improved quarterly guidance, while Transformers & Rectifiers hit a lower circuit due to weak order flow. The metal index outperformed broader markets, aided by positive industrial demand outlook. Analysts noted continued traction in non-ferrous metals and pharmaceutical counters amid global supply normalization and strong domestic capital expenditure momentum.