PBSI is the national body in charge of badminton in Indonesia and Pelatnas (Pemusatan Latihan Nasional) is just the training centre for the national team players. There are Pelatnas for all sports in INA, not only badminton.
Technically speaking, all club players also belong to PBSI and some get called up to the Pelatnas. Which is why we have the Seleknas (Seleksi Nasional) to select which players are eligible to represent the national team.
