Delay in Payment of RCM liability on Renting commercial space FY 2024-25 - Goods and Services Tax - GST

Hi, We have not been paying GST on RCM liability on renting of commercial property. We could understand that the same has to be paid from tax period Oct 24. However, we have finished filing 3B return for Mar 25. We are looking to pay the liability and interest now. Please advise how the same has to be paid? Is it ok to pay in Apr 25 GSTR 3B ? And show break-up (month wise) on the tab which comes after making payment/set-off (before EVC)? Also, whether self-invoice number to be added in GSTR 1 of Apr 25? Would appreciate your response. Thanks in advance.