Time of supply in case of Import of Service

Manish Yadav (18 Points)

30 May 2019  
Our company had imported some service in March 2017 but didn't discharge their liability as RCM in the March 17 return, as they followed the section 13(3) which say that time of supply will earlier of following:
date of payment or date of credit in books of account
or
60 days after the receipt of invoice.

Now i have query that can we show liability in May 2019's return and claim ITC or the same will shown in 17-18's annual return and pay through DRC 03 and ITC will be lapsed.

Please suggest.