Should there be LUT along with bond and bank guarantee ?

I have an OPC. It offers export to service to company outside India . It falls in 18 percent gst bracket. Company income would be 54 lakhs per year. Director salary would be 45 lakhs per year. I guess gst would be 9.72 lakhs ( 18 percent of company income ).

In order to avoid paying gst, should i furnish LUT along with bond worth 9.72 lakhs and bank guarantee of 10 percent of that amount ?

Or just LUT is enough at gst portal ?

Thanks :)