Defense of GST writ petitions requires proactive monitoring, authorization of commissioners and coordinated policy referrals for legal response. Defense of GST-related writ petitions requires adherence to existing authorization procedures for Commissioners to represent the Union, active monitoring of petitions by senior commissioners, liaison with departmental and Union counsels, and timely proposals to the Commissioner (Legal) indicating the officer to be authorized. Petitions must be examined and self-contained references sent to the Policy Wing or GST Council identifying exact policy issues for comment to secure coordinated policy input for legal defence.