https://help.tallysolutions.com/docs/te9rel60/Tax_India/VAT/Delhi/Sales_Ret.htm

Recording Sales Returns (Delhi)

When doing sales returns, you can create credit notes for taxable goods against the original invoice.

To create a credit note for taxable goods

1.    Go to Gateway of Tally > Accounting Vouchers > Ctrl+F8.

2.    Enter the reference number in the Ref. field.

3.    Select the Party’s A/c Name from the List of Ledger Accounts.

4.    Enter the required details in Party Details screen.

5.    Select the common sales ledger in Sales Ledger field.

6.    Select the required taxable stock item.

7.    Enter the Quantity and Rate.

8.    Select the required common VAT ledger.

9.    Set the option Provide VAT Details? to Yes.

10.  Select the Nature of Return.

The credit note appears as shown below:

11.  Press Enter to save.