Q2 results: Nifty companies show zero profit growth leading to downgrades

September quarter results reveal weaker-than-expected earnings, with a flat YoY growth for 34 Nifty companies. Key downgrades in earnings estimates affected FY25 and FY26 projections, led by BPCL, Reliance Industries, and Coal India. Mixed performance noted across banks, IT, consumer, and oil marketing companies.