This property defines the Unicodes which are Brahmi Joining Number
Characters like 𑁒,𑁓,𑁔, etc. are listed under Brahmi Joining Number Indic Syllabic Category.
20 Characters are present in Brahmi Joining Number Indic Syllabic Category starting with the Unicode point U+11052 that represents the character 𑁒.
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.