As this is a Logistic Firm, He Has to Prepare the Invoice from the Available Records Ie. Lrs, Hamali Receipt, Etc, Which He Had to Consider While Preparing the Invoice, like Waiting Chgs, Diversion Chgs, Delivery Chgs, Collection Chgs, Hamali Chgs, Loading/unloading Chgs, Etc. Then Get It Authorised and Send the Same to the Client and Enter the Self Copy in the Accounting Package, Prepare the Billing Statement, Bills Receivable Statement, Outstanding Statements, Etc. Doing Followup for Bills Payments with Clients and Making Entry of Receipt of Payments in Package & the Preparing the Report of the Same, Etc. Reporting the all These Activities to the Chair Person Daily and Weekly as the Case May Be.