This property defines the Unicodes which are Number
Characters like 0,1,2, etc. are listed under Number Indic Syllabic Category.
501 Characters are present in Number Indic Syllabic Category starting with the Unicode point U+0030 that represents the character 0.
Currently, as per latest version 15.0.0, Unicode supports 36 number of Indic Syllabic Category. Here are a few examples - Avagraha,Bindu,Brahmi Joining Number, etc.