Below are some of the alternate ways to recover the last line that was deleted in Tally ERP 9:  Utilize the "Undo" option: Tally ERP 9 has an " Undo " feature that enables you to reverse the last action you took in the program. By pressing Ctrl + Z on your keyboard or choosing the "Undo" option from the "Edit" menu, you can undo an accidental deletion of a line and restore it.  Use the "Restore" feature: Tally ERP 9's "Restore" feature enables you to restore a prior version of a data file from a backup. You can restore the deleted line if you have a backup of your data file that still contains it. Go to the Gateway of Tally menu and choose the "Restore" option to use the "Restore" feature.  Use data recovery software: If none of the above approaches proves successful, you can recover the erased line using data recovery software. There are numerous data recovery applications that can scan your Tally ERP 9 data files and recover erased lines and other data.  The last line erased in Tally ERP 9 might be recoverable using these alternative techniques. Nevertheless, it is always a good idea to periodically back up your data to guard against data loss and reduce the likelihood that data recovery would be required.