STATE OF MADHYA PRADESH vs CENTRE FOR ENVIRONMENT PROTECTION RESEARCH AND DEVELOPMENT .

The Supreme Court upheld the National Green Tribunal's order mandating that motor vehicles must display a valid 'Pollution Under Control' (PUC) Certificate, failing which their registration would be suspended and fuel denied. The court emphasized the importance of environmental protection and compliance with pollution control measures. The appeal by the State of Madhya Pradesh was dismissed, reinforcing the Tribunal's authority in environmental matters.