Shiksha is a Sanskrit word, which means "instruction, lesson, learning, study of skill". It also refers to one of the six Vedangas, or limbs of Vedic studies, on phonetics and phonology in Sanskrit.
A page from the Yajnavalkya Shiksha manuscript (Sanskrit, Devanagari). This text is also called Vajasaneyi Shiksha and Traisvarya Lakshana.
Nandināgarī is a Brahmic script derived from the Nāgarī script which appeared in the 7th century AD. This script and its variants were used in the central Deccan region and south India, and an abundance of Sanskrit manuscripts in Nandināgarī have been discovered but remain untransliterated. Some of the discovered manuscripts of Madhvacharya of the Dvaita Vedanta school of Hinduism are in Nandināgarī script.
A 16th century CE Sanskrit record of Sadasiva Raya in Nandināgarī script engraved on copper plates. Manuscripts and records in Nandināgarī were created and preserved historically by creating inscriptions on metal plates, specially treated palm leaves, slabs of stone and paper.