The National Green Tribunal—a specialised environmental institution constituted 10 years ago—has transformed environmental regulation and governance in India. Yet, the NGT’s success has been tarnished in several areas. What used to be a progressive, the innovative green tribunal now is inconsistent in adjudicating environmental litigation pitched against huge infrastructure projects. The tribunal is also struggling because of the lack of human resources and administrative support for its existence. The past 10 years of the NGT can be largely summed up as a story of procedural success in environmental decision-making tainted by institutional erosion and selective adjudicative decisions.