Tally’s Default
In company master, there is only single filed is available for updating company email address. If there is a need of multiple email address, which shall be used for Accounts and Sales, there is no choice for that.

Need of this TDL
Using the TDL, new field available for alternative email address in company master. Which shall be used in printing of Invoices with sales Email address and for Accounts purposes other email can be used in reports.