duplicate taxes in AR invoice for the India localized order

Using the Oracle standard Auto invoice import process, we are getting duplicate taxes for the India localized order, in case of multiple invoices being created for the same order.

Oracle ERP version: R12.2.4

For instance:

Order total: $100, Tax : $20
1) Using the external billing system the invoicing amount is calculated as $80 and inserted into the AR interface. After running AIP the invoice gets generated with an amount $80 and localized tax $20, which is fine and expected result.

2) Remaining amount of $20 is inserted in AR interface next time. Upon running Auto invoice program an invoice of $20 get generated but localized tax of amt $20 also get generated again, which is duplicate tax.