No Itc not available. due date of taking credit for FY 2017-18 is 31.3.19 you can only pay taxes, interest, penalty, fee, fine. But u can't claim credit
if the supplier of the service located in non taxable territory (place outside India/) you hab eto pay IGST 5% under rcm and take credit ...
of the service provided by person in non taxable territory to a person in non taxable territory, credit for tax charged in goods (other than ships, vessels etc) not be taken