Structure and Writing System
Gurmukhī alphabets system of writing is an abugida, wherein, each consonant has an inherent vowel that can be changed using vowel signs. This sacred script adapted to write other languages, such as Braj Bhasha, Khariboli (and other Hindustani dialects), Sanskrit and Sindhi. They have roots in the proto-sinatic alphabet style (19th–15th century BCE) as part of the northwestern group of the Brahmi script.
In Punjab, there were at least ten different scripts classified as Landa, Mahajani being the most popular. Modeled specifically on the structure of the Lahndi: Mahajani business shorthand, written as: Laṇḍā was used by Guru Nanak during his early apprenticeship days in storehouses. Laṇḍā form is the clipped alphabet style. The Laṇḍā alphabets belong to that writing system which including letter formations without a tail, that meant that the script is without any vowel symbols. Lahndi is a descendent of the Śāradā script from the northwestern group of the Brahmi script (Fig. 4).
