Does the GST Law empower the Government to exempt supplies from the levy of GST?

Yes. In the public interest, the Central or the State Government can exempt either wholly or partly, on the recommendations of the GST council, the supplies of goods or services or both from the levy of GST either absolutely or subject to conditions. Further the Government can exempt, under circumstances of an exceptional nature, by special order any goods or services or both. It has also been provided in the SGST Act and UTGST Act that any exemption granted under CGST Act shall be deemed to be exemption under the said Act.