Payable Open interface is updating the Invoice amount with sum of line amount + tax amount while imp

When I am trying to load my AP invoices via Payables open interface import program, for non-India OUs the invoice amount is remaining the same as what we enter in the AP_INVOICES_INTERFACE (INVOICE_AMOUNT) even after tax is calculated at lines and the invoice goes on hold when there is a difference between invoice amount and sum of line + tax amounts (this is the same case as how it happens in manual entry)

But for India invoices the invoice amount is getting updated to line amount + tax amount during invoice creation irrespective of whatever the amount we give in AP_INVOICES_INTERFACE (INVOICE_AMOUNT) thus matching the invoice amount with line+tax amounts which is not normal from standard functionality as my client is hoping this shud go on hold as well and invoice amount should remain same as whatever entered in invoice interface table. Why this is different for India invoices and how to overcome this?