At primary level, for teaching Hindi language, the most necessary thing is—

A print-rich environment in the classroom is most essential for teaching Hindi at the primary level. According to modern language pedagogy and NCF guidelines, surrounding children with various forms of written text (charts, posters, labels, books, children's writings) helps them naturally acquire reading and writing skills. This creates immersion in language and supports literacy development more effectively than just teacher knowledge, colourful books alone, or written assessments.