139 (4) , want to file return for 2016.17

CLIENT FILED original return for 16.17 on 4.8.2017

the return was invalidated due to non submission of balance sheet

the client skipped to read mails and posts to correct the defect 

as on 20.8.2018 how can the cleint file a return and claim back his refund for 2016.17 ?

cpc helpline suggested 139 (4) as there was a return filed but was invalidated