Nifty held 24,850 in a quiet session ahead of the Fed meet, as broader markets remained mixed. DMart jumped 7% on expansion plans, while L&T rose 5% post-strong earnings. Analyst Kavita Agrawal sees swing entry in DMart near ₹4,000 with ₹4,485 target. NSDL IPO saw strong Day 1 retail and HNI interest.