To restore a custom data backup for a specific client, please follow these steps:
- Open the Spectrum module, such as Income Tax or TDS.
- Navigate to the "Tools" Menu → "Database Utility" → "Custom Restore".
- Select the custom data backup file you wish to restore. The data available in the custom backup will be displayed in the user interface.
- Check the box next to the client for whom you want to restore the data, then click on "Done".
- Upon completion, you should see a message confirming: "Process completed successfully!"

You can apply the same process to restore TDS custom data backups as well.
Following these steps precisely should resolve the issue.