A short history of Siraiki Scripts in last ages

Sharda script Writing was first developed in Tamil Nadu, sometime about 250 BC, when the Asokan Southern Brahmi script was adapted for Tamil. The earliest inscriptions in Tamil script proper are the Pallava copperplates of about AD 550. The Kannada–Telugu script is based on Calukya (6th century) inscriptions; the Grantha script, used in Tamil Nadu for Sanskrit since the 6th century, was accommodated for Malayalam and Tulu. Apart from these, Tamil has an old cursive script called Vatteluttu, “round script,” and Malayalam possesses its own modern cursive form, Koleluttu, “rod-script.”
Brahmi script Brahmi script of north India, possibly connected with the late Maurya scripts and the early Kalinga character, and associated with the Sunga dynasty (c. 185 BC–c. 73 BC). The script was one of three prototypes of the North Indian subdivision of Brahmi script, out of which the Gupta scripts rose. Copyright © 1994-2002 Encyclopædia Britannica, Inc.
Nastaliq Script predominant style of Persian calligraphy during the 15th and 16th centuries. The inventor was Mir 'Ali of Tabriz, the most famous calligrapher of the Timurid period (1402–1502). A cursive script, nasta'liq was a combination of the naskhi and ta'liq styles, featuring elongated horizontal strokes and exaggerated rounded forms. The diacritical marks were casually placed, and the lines were flowing rather than straight. Nasta'liq was frequently incorporated into the paintings of the early Safavid period (16th century) and is traditionally considered to be the most elegant of the Persian scripts.
Ta,liq script in Arabic calligraphy, cursive style of lettering developed in Iran in the 10th century. It is thought to have been the creation of Hasan ibn Husain Ali of Fars, but, because Khawaja Abdul Mali Buk made such vast improvements, the invention is often attributed to him. The rounded forms and exaggerated horizontal strokes that characterize the ta'liq letters were derived primarily from the riqa' script. The ornateness and sloping quality of the written line had roots in the towqi script of Ibn Muqla (died 940). Designed specifically to meet the needs of the Persian language, ta'liq was used widely for royal as well as daily correspondence until the 14th century, when it was replaced by nasta'liq. See nasta'liq script.