To create a Purchase Ledger,
Go to Gateway of Tally > Accounts Info. > Ledgers > Create
Enter the Name of the purchase ledger.
Select Purchases Accounts as the group name in the Under field.
Set Inventory values are affected to Yes.
Set the option Used In VAT Returns to Yes to display the default VAT/Tax Class sub-screen.
Note: From Rel 4.8 an option to provide Bank Details is provided in the Ledger Master.
Select the required classification from the list of VAT/Tax Class. The list consists of Purchase classifications applicable.
Press Enter to return to the Purchase ledger creation screen.
Set Use for Assessable Value Calculation to No
Accept the ledger creation screen