Respected sir, 

                     very good question. Nowadays most of the journals are coming with the Prefix of "International" . the journal can be found out whether it is a International journal by seeing the circulation of the journal. journal which is circulated other than the local region or country can be considered International. These days almost all the journals are having Open access in Internet which makes them International journals automatically.  

Dear Sir,

I agree with Prof. Tamizhkumaran J's idea. But, there must be an essential condition: the journal must be published in English. Just only in English, the international language.