Tdl For Tally Erp 9 May 2026

TDL for Tally ERP 9 — Overview and Practical Guide

What TDL is

• TDL (Tally Definition Language) is the proprietary scripting language used to extend, customize, and automate Tally ERP 9.
• It lets you add new masters, vouchers, reports, screens, menus, validations, data entry automation, and integrations without modifying Tally’s core binaries.

(Overwrites the default collection to filter out any ledger where IsInactive = Yes.)

[Report: MyCustomReport] Form: MyCustomForm tdl for tally erp 9

TDL is built on definitions rather than traditional procedural code, emphasizing re-usability. TDL for Tally ERP 9 — Overview and

Introduction

2. Workflow Automation

You can write TDL to auto-populate fields based on logic. Example: If the customer’s state is “Maharashtra,” automatically set the transport mode to “Road” and print an extra copy for the Sales Tax department. TDL (Tally Definition Language) is the proprietary scripting