Ṭhē is an additional letter of the Arabic script. It has the basic shape of tāʼ (ت), but with vertical dots, rather than horizontal. It is not used in the Arabic alphabet itself, but is used to represent an aspirated[ʈʰ] in Sindhi, a language mainly spoken in Pakistan. Its Latin description is ṭh,[1] or sometimes t́h.
In an older version of the script, the ٽ was used instead of ٺ and vice versa.
^Kurzon, Dennis (1 October 2013). "Diacritics and the Perso-Arabic script". Writing Systems Research. 5 (2). Taylor & Francis: 234–243. doi:10.1080/17586801.2013.799451. S2CID144586999.