Tata Steel, Power Grid Corporation of India, Punjab National Bank, Hyundai Motor India, InterGlobe Aviation, Indus Towers, Aster DM Healthcare, Computer Age Management Services, CESC, Greaves Cotton, HEG, Indraprastha Gas, IIFL Finance, JB Chemicals & Pharmaceuticals, KPIT Technologies, Navin Fluorine International, and Zydus Wellness will announce quarterly earnings on July 30.