Infosys, DLF & more: Top stocks on broker' radar on May 21

Nomura recommends Infosys as a top pick, emphasizing its focus on cash flow and disciplined M&A approach. CLSA has an underperform rating for Petronet LNG despite better-than-expected profits due to provision reversals. Morgan Stanley is overweight on DLF, citing strong pre-sales and cash flow. Jefferies maintains a buy rating for PI Industries, noting domestic revenue growth.