Quarterly results that are expected today include Tech Mahindra, Punjab National Bank, Hindustan Petroleum Corporation, DLF, GAIL (India), ACC, BHEL, Marico, IDFC First Bank, Apollo Tyres. Here is the street expectation for the companies: Tech Mahindra Consensus expectations for Q3FY19E: Revenue – Rs 8,956cr, up by 3.8% qoq aided by a pick-up in telecom verticl on the back of recent deal wins. Enterprise vertical is expected to bounce back after HCI dragged down revenues in Q2. Enterprise growth is expected to be…