GST Registration in Noida I Startup Registration in Noida I MSME Registration in Noida I ISO Certification in Noida I Trademark Registration in Noida I IEC Code Certification in Noida I Income Tax Return Filing Services in Noida I Q- What is the concept of supply in GST and why is it important ? Ans - Once a person is being registered under the act GST , Than any work carried out by him i.e. sales , jobwork, manufacturing etc would fall under the definition of supply unless specifically excluded under the law.