Markets may be subdued Tuesday as investors eye mixed global cues and key earnings. Watch HCL Tech after 9.7% profit dip, Sun Pharma on US drug launch, LIC after CEO reshuffle, and Deepak Fertilisers on ₹1,200 Cr LNG deal. Q1 results due from HDFC Life, ICICI Lombard, and others. Nifty faces crucial support at 25,000 amid IT weakness.