Concessional IGST rate for petroleum and coal bed methane supplies amended, altering the rate and setting an effective date. Amends the concessional rate for inter State supplies of specified goods used in petroleum operations and coal bed methane operations by substituting the entry in column (4) against Serial No. 1 of Notification No. 3/2017-Integrated Tax (Rate); issued under section 6(1) of the Integrated Goods and Services Tax Act, 2017 on the recommendations of the Council, with a stated commencement date and departmental file reference.