Operational debt under GST: reduction by insolvency adjudication requires intimation and adjustment of recovery proceedings. Where insolvency proceedings finalised under the Insolvency and Bankruptcy Code reduce statutory dues payable under the HGST Act or existing laws, the jurisdictional proper officer shall issue the prescribed intimation of demand reduction to the taxable person and to the authority with whom recovery proceedings are pending, and recovery may continue only in relation to the reduced amount; insolvency adjudications are treated as 'other proceedings' for this purpose and the prescribed Rule 161 procedure must be followed.