Rectification from B2B to B 2C

Harshit Acharya (404 Points)

02 September 2020  
An accountant who has to file Gst do rits company has by mistake entered the same Gst numbers for 2 parties ( whose ledger name was similar) .
Out of these 2 parties one party was gst registered and other was b2c( not registered) . Accountant has filed this b2c sales also in B 2B section giving Gst number of other party ( whose name is similar). Tax has been paid regularly on it.
How should this be rectified?