Then, in 1963 three municipal districts in the area that were growing in size were merged and promoted to the category of si, meaning city, by order of Law No 1176.
Kemudian, pada tahun 1963 tiga distrik kota di daerah yang tumbuh dalam ukuran digabung dan dipromosikan ke kategori si, yang berarti kota, atas perintah UU No 1176.