Coal India’s earnings for the September quarter are likely to be weak due to low volumes, subdued e-auction pricing and increase in employee costs. Analysts expect the Kolkata-based firm to report a consolidated net profit of about ₹2,200 crore in Q2 against a year-ago figure of ₹2,540 crore and sales of about ₹16,800 crore (₹16,957 crore). Coal India is scheduled to announce its July-September earnings on Tuesday. Any positive surprise will trigger a rally in the stock.