New Delhi, Nov. 6 -- Mediation efforts between InterGlobe Aviation Ltd, the operator of India's largest airline IndiGo, and Mahindra Electric Automobile Ltd over the use of the "6E" trademark have failed.

"The parties submitted that the mediation has failed," said the court's order, which is dated 31 October but has been made public now.

The matter came up before the joint registrar (judicial) Sudhir Kumar Sirohi, who recorded that the dispute could not be resolved through mediation. The court directed both companies to file photocopies of all relevant documents along with a joint schedule.

The case is now listed for 3 February 2026, when the court will take up the admission and denial of documents. After this stage, the case will move...