As per section 9(3) of the CGST act "The Government may, on the recommendations of the Council, by notification, specify categories of supply of goods or services or both, the tax on which shall be paid on reverse charge basis by the recipient of such goods or services or both and all the provisions of this Act shall apply to such recipient as if he is the person liable for paying the tax in relation to the supply of such goods or services or both."
As per the notification no. 9/2024 of CGST, "If an unregistered person supplies the service by way of renting of any property other than residential dwelling to any registered person, then such registered person shall be liable to pay the GST under the reverse charge"
As per the rate notification no. 07/2025 of the CGST act on the above entry after the word "Any registered person”, the words “other than a person who has opted to pay tax under composition levy” shall be inserted.
As in our case, the ground floor is taxed as a commercial property rented to a composition dealer. The definition of commercial property is not provided in the CGST act so general commercial property means a property that is used for the commercial purpose. As shop is used as a retail shop that is for commercial purposes.
Therefore as per the above provision and notification composition dealer is not liable to pay GST under RCM and also supplier is unregistered hence he shall not charge the GST on renting of commercial property.