in chinese buddhism and other east asian buddhism, the standard sanskrit script for mantras and dhāraṇīs was not the rañjanā script, but rather the earlier siddhaṃ script that was widely propagated in china during the tang dynasty. however, in late imperial china, the influence of tibetan buddhism popularized the rañjanā script as well, and so this script is also found throughout east asia, but is not as common as siddhaṃ.