At least 40 companies will declare their earnings for the September quarter of the financial year 2026-27 on Wednesday, October 21. They include Zomato-operator Eternal, renewable energy player Adani Green Energy, Taj operator Indian Hotels Company, chemical conglomerate SRF, hypermarket chain Vishal Mega Mart, electrical wires and cables manufacturer KEI Industries and NBFC Mahindra and Mahindra Financial Services.