Tally Year-End Reconciliation Help

I need my last financial year in Tally brought fully up to date and error-free. The priority is getting every sales entry posted and reconciled correctly. While many invoices and receipts are still scattered,... (Budget: ₹750 - ₹1250 INR, Jobs: Accounting, Data Entry, Excel, Finance, Financial Analysis, Financial Consulting, Intuit QuickBooks, Tax Compliance)