A process and system for manufacturing twisted and textured yarns are provided. The process includes drawing a first material yarn from a first supply source under predetermined tension; heatingly extending the first material yarn through at least one first heating godet; drawing a second material yarn from a second supply source under predetermined tensions; heatingly extending the second material yarn through at least one second heating godet; feeding at least one of the first material yarn and the second material yarn in an Air Textured Unit (ATY) to obtain a third material yarn; winding the third material yarn exiting from the ATY, wherein the winding is a pirn winding process; twisting the first material yarn, the second material yarn and the third material yarn; and rewinding the twisted third material yarn.