GST  Practitioner &  Accounts 
                
                   15022 Points
                   Joined March 2014
                
               
			  
			  
             
            
             Export of service is ZERO rated  under GST  , you can  export  with  payment of  IGST  and refund or  LUT/BOND ( you have to check  what  is applicable ) , yes you have mention export details  in GST retrun .