As per Section 24 of the GST Act, GST registration is generally required for inter-state service providers. However, an exemption applies if your turnover is below ₹20 lakh (₹10 lakh for special category states), including export of services. So, if your turnover is less than ₹20 lakh, you are not required to obtain GST registration.
GST registration is mandatory for export businesses in India. Unlike other business activities that have a turnover threshold for mandatory registration, export businessesmust register for GST irrespective of their turnover
If you are involved in supply of inter-state taxable supply of services (including export of services) and your turnover is less than Rs. 20 lakh then you are not required to register under GST because “export of service” is considered an “inter-state supply” (as per section 7 sub-section 5) and there is no requirement for registration under GST if your turnover is below the threshold limit(as per section 24). You can refer the below images (with blue box) for your reference.