Input reversal amount plz help

I was taken wrong input in Aug-17 of IGST Rs 155400. In April & May 18 my CGST & SGST liability offset with wrongly taken input IGST. at same time I was paid April and May 18 challan with same liability amount CGST SGST but NOW June 18 I reverse the input of IGST but it was not adjust with my CGST SGST. that was available in my cash ledger.