A Delhi court has permanently stopped Sainus Pharmaceutical Private Limited from using the 'Udaan' trademark. This ruling came after RSPL Health Private Limited filed a case alleging trademark infringement. RSPL Health, known for its 'Ghari' detergent brand, had registered its 'Udan' mark earlier. The court found Sainus Pharma's mark to be identical and deceptively similar to RSPL's registered trademark.