GST litigation coordination with CBIC strengthens defence in writ petitions challenging central laws and notifications. GST-related writ petitions and public interest litigations challenging Central Acts, rules or notifications, where the Government of India, Department of Revenue or CBIC is not impleaded as a respondent, require coordination with the Commissioner (Legal), CBIC through the Litigation Section, Headquarters, so that effective defence and representation may be ensured. Important judgments in favour of the Revenue by the High Court and Supreme Court are to be shared with the respective CBIC legal authorities through Headquarters.