TDL Developer Needed – Automated IDC Service Billing System in Tally Prime Gold v7 Overview We are an Internet Data Center (IDC) business looking to build a custom TDL add-on for Tally Prime Gold v7 to automate service billing, advance revenue, revenue sharing, and statutory reporting. Development will be tested on Desktop EDU version first, then deployed on AWS cloud. The same TDL must work in both environments. Platform & Constraints Tally Prime Gold v7 Must work in Item Invoice mode only Inventory & Invoicing enabled Customers under Sundry Debtors (no Cash sales) Bill-wise tracking mandatory Indian GST / TDS compliance required Key Functional Requirements 1. Service Billing Services: Cloud IDC, Managed Hosting, Co-location, Other IDC services Billing frequency: Monthly / Quarterly / Half-yearly / Yearly (calendar based) Custom invoice fields (via TDL): Service Group Billing Frequency Customer PO No & PO Date Service Start Date & End Date (per service line) Services as service items under main income ledgers 2. Automated / Recurring Billing Auto-generate next invoice based on customer service configuration Prevent duplicate billing for same period Allow manual override 3. Collections & Outstanding Receipt vouchers linked to invoices Track paid / partially paid / unpaid invoices Handle TDS and GST-TDS deductions 4. Revenue Sharing Logic Partner revenue share: 50% : 50% (configurable) From our 50%, 65% payable to subsidiary company (configurable) Electricity charges recovered from partner share 10% partner share hold if confirmation/penalty pending Ratio changes allowed with effective date (no retro recalculation) 5. Advance & Accrued Revenue Day-wise revenue recognition excluding GST Automatic Advance Revenue booking at period end Automatic reversal in next period Works even if invoice unpaid 6. Compliance & Rounding GST, TDS, GST-TDS as per Indian law Separate statutory rounding for tax components Reports Required (Summary) Billing Register Bill Due / Unpaid / Due-but-Not-Billed Advance & Accrued Revenue Revenue Share Payable / Paid Subsidiary Share Payable GST & TDS / GST-TDS Payable Bank & Collection Summary IDC-specific Income Statement Deliverables TDL source code (commented & versioned) Installation & configuration guide Sample test data & vouchers Demo screenshots / video Post-delivery bug-fix support (agreed period) Required Skills Strong TDL development (Prime 6/7 experience preferred) Accounting + GST / TDS knowledge (India) Experience with Item Invoice customization & reports in TDL Ability to handle Prime screen behavior differences Project Structure (Suggested) Phase-wise milestones (Invoice → Auto Billing → Revenue Share → Advance Revenue → Reports)