Am working in a manufacturing company, dealing in pasta and instant food products, its usual for us to hire GTA to transport goods from one place to another, here the GTA is unregistered and we will pay GST under Reverse charge mechanism,as per the GST Act we have to raise the service Invoice when ever we pay tax under RCM, my query is how to file the invoices raised under RCM in GSTR1, kindly guide me.