https://help.tallysolutions.com/docs/te9rel65/Advanced_Features/Advanced_Accounting_Features/Altering_a_Budget.htm

Altering or Deleting a Budget

You can modify a budget using the alter option. You can also delete a budget.

Alter Budget

1. Go to Gateway of Tally > Accounts Info > Budgets > Alter.

2. Modify the fields as required, i n the Budget Alteration screen.

3. Change the period or change budgets of Groups , Ledgers , and Cost Centres .

Note: By default, Set/Alter Budgets is set to No . Set this option to Yes to alter .

Delete Budget

1. Go to Gateway of Tally > Accounts Info > Budgets > Alter .

2. Press Alt+D to delete.