

As the earliest and most geometric style of Brahmi, the letters found on the Edicts of Ashoka and other records from around that time are normally the reference form for Brahmi letters, with vowel marks not attested until later forms of Brahmi back-formed to match the geometric writing style. Several identifiable styles of writing the Brahmi Dha can be found, most associated with a specific set of inscriptions from an artifact or diverse records from an historic period. The Brahmi letter, Dha, is probably derived from the Aramaic Dalet, and is thus related to the modern Latin D and Greek Delta. The third form of dha, in Kharoshthi ( ) was probably derived from Aramaic separately from the Brahmi letter. The Tocharian Dha did not have an alternate Fremdzeichen form. Dha as found in standard Brahmi, was a simple geometric shape, with variations toward more flowing forms by the Gupta. There are three different general early historic scripts - Brahmi and its variants, Kharoṣṭhī, and Tocharian, the so-called slanting Brahmi.

The values of the different forms of ध are: Further information: Āryabhaṭa numerationĪryabhata used Devanagari letters for numbers, very similar to the Greek numerals, even after the invention of Indian numerals.
