E-commerce regulation: mandatory transparency, grievance redressal, and seller obligations to protect online consumers through disclosure and ranking rules. The rules require e-commerce entities, marketplace operators, inventory retailers and sellers to provide prominent disclosures (legal name, addresses, website, contact details), appoint resident nodal and grievance officers, acknowledge complaints within forty-eight hours and redress within one month, prohibit unfair trade practices and unjustified price manipulation, ensure explicit consumer consent for purchases, process refunds per payment regulations, and for marketplace entities to disclose seller details, complaint ticketing, ranking parameters and maintain records to identify repeat infringers.