The supplier has given me the advance demand notice on 12th June 2018 for the service he will deliver on 22 July 2018. I have given him the demand draft on 30 June 2018 which he has encashed on 15 July 2018.
According to GST law, what date should he register in his books for receiving the payment for the services? And what section of GST law provides the detail about it?