You can select the district of the party ledger while entering the mailing details during ledger creation/alteration.
To select the district of the party ledger
1. Go to Gateway of Tally > Accounts Info. > Ledgers > Create.
2. Enter the Name of the customer ledger.
3. Select Sundry Debtors or Sundry Creditors as the group name in the field Under.
4. Set Maintain balances bill-by-bill? to Yes.
5. Enter the Default credit period, if any.
6. Set Check for credit days during voucher entry to Yes, if required.
7. Enter the Mailing Details.
8. Select the Country as India.
9. Select the State as Punjab.
10. Select the District Name from the List of Districts, as shown below:
11. Press Enter to return to the Ledger Creation screen.
12. Enter the Pincode.
13. Press Ctrl+A to accept.