M.C. Mehta vs Union Of India & Ors.

The Supreme Court reiterated its earlier directive for the conversion of Delhi's city buses to CNG mode by 31st March 2001, noting the Delhi Administration's failure to comply. The Court allowed temporary permits for buses and commercial vehicles not exceeding eight years old, provided owners filed affidavits indicating steps taken towards conversion. The Court emphasized the urgency of compliance and expressed concern over the Administration's tardiness, indicating a need for stricter oversight in issuing permits.