Summary: The text discusses variants in linguistic forms primarily focusing on Vedic literature. It explores the interchange of strong and weak stems in verbal conjugation classes, variations in grade or quantity of stems, and changes in tense and tense-systems. The study reveals the fluidity of Vedic language in distinguishing strong and weak stems, especially in the 5th and 9th present classes. Furthermore, it addresses shifts in person and number in verbal constructions which are commonly observed in Vedic texts. The discussion also touches upon the interchange of moods and tenses in dependent clauses. Variants in reduplication and the rhythmic changes in quantity of syllables are highlighted as they demonstrate the dynamic and evolving nature of Vedic linguistic forms. The text presents a systematic classification of modal interchanges and a detailed analysis of the grammatical transformations observed in Vedic chants assuring accurate interpretation of the text forms.