Govt amends Ad hoc Exemption Order No. 4/2021-Customs dated the 3rd May, 2021 (01.06.2021) Leave a Comment / Daily Updates / By Team Bizsol Govt amends Ad hoc Exemption Order No. 4/2021-Customs dated the 3rd May, 2021, to extend the exemption from IGST on imports of specified COVID-19 relief material donated from abroad, up to 31st August, 2021.