https://help.tallysolutions.com/docs/te9rel60/Tax_India/VAT/Maharashtra/Record_Transaction_Book.htm

Return Transaction Book (Maharashtra)

The Return Transaction Book displays the list of saved returns. Each time the form is modified and saved, the details are displayed as a separate row in this book as shown below:

If Yes is displayed in Is Modified column of this report, the Form VAT 231 report displays a message about the changes made in the return, and prompts you to recompute the values.