IBAN Code error

Dear All,

I am copying a Foreign compay's Bank Account to our Indian Company's Bank account and changing the Country and Currency only. The bank account number, swift number, acc key remains same.

While updating the IBAN No. it is not allowing to generate.

The Error shows as "The Bank country and ISO code of the IBAN are not identical". Message No.BF00025.

How to rectify this error in 4.6c ?

Expecting help and guidelines from the experts.

Thanks in advance.

Regards,

G. BHASKARAN