The Rouse Avenue Court of New Delhi has summoned Hindalco Industries Ltd and two officials to appear before the court on May 6.The summons have been issued in grave criminal charges, including criminal breach of trust and fraud.According to the CBI, the company continued its mining operations beyond the permitted mining plan and extracted around 4.8 million tonnes of coal.The court also observed allegations regarding the use of coal by Hindalco's existing plant.