Section 29(3)(v) in The Delhi Electricity Regulatory Commission (Forum for Redressal of Grievances of the Consumers and Ombudsman) Regulations, 2018
(v)where the representation by the complainant, in respect of the same grievance, is pending in any proceedings before any court, tribunal or arbitrator or any other authority, or a decree or award or a final order has already been passed by any such court, tribunal, arbitrator or authority;