In my view your service is export of service. Hence exempted as zero rated supply. Value of export has to be included to arrive at threshold exemption limit.
How to compute Aggregate Turnover of ₹ 20 lakh/` 10 Lakh. - Term “aggregate turnover” has been defined in Section 2(6) of the Central GST Act, 2017 to mean as the aggregate value of all taxable supplies (excluding the value of inward supplies on which tax is payable by a person on reverse charge basis), exempt supplies, exports of goods or services or both and inter-State supplies of persons having the same Permanent Account Number, to be computed on all India basis but excludes Central tax, State tax, Union Territory tax, Integrated tax and Cess.
The value of following supplies shall be taken into account while computing the limit of ₹ 20 Lakh/ ₹ 10 Lakh.
(a) | Value of all taxable supplies excluding the value of inward supplies |
(b) | Value of exempted supplies |
(c) | Value of export goods or services or both |
(d) | Value of inter-State supplies of persons having same Permanent Account Number to be computed on all India basis |
Thus in view of the above legal position and in view of your turnover in the preceding year as well as this year, you can decide.