This property defines the Unicodes which belongs to Tamil Supplement block
Characters like 𑿀,𑿁,𑿂, etc. are listed under Tamil Supplement Block.
52 Characters are present in Tamil Supplement Block starting with the Unicode point U+11FC0 that represents the character 𑿀.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.