I've messaged the referee of Portuguese coins some time ago. I got the explanation that Portuguese's “state of India” include several territories that are outside of modern borders of India but within the vicinity of Indian ocean, such as Sri Lanka and Malacca. According to Portuguese collectors, Malacca coins are produced or intended for all these territories and therefore sorted as coins of Portuguese India. Additionally:
Here we have a case similar to that of Portugal/Brazil, that I have recently discussed with Jarek and which is certainly repeated with many other countries or territories.
I therefore ask the team that manages the Numista catalog to also think of a solution that satisfies all collectors without hurting their sensibilities. I have already meditated a lot on the subject and its solution, as I've said before to Jarek, seems to be easy:
-Remembering the time when I was a programmer is enough that, in the field "Issuing authority", it was possible to add a second authority, as already happens in many other fields.
I've asked a follow up question, since multiple authority is not yet implemented should the duplicates in Malay peninsula be left standing or not? In this regard, the referee have not replied. I have left it standing for now.