This two-volume set contains the original Sanskrit \\\"Mool\\\" (root) text of the Mahābhāṣya, the monumental 2nd-century BCE commentary by Maharshi Patanjali.As a foundational pillar of the Trimuni Vyakarana tradition, it provides an exhaustive and philosophical analysis of Pāṇini’s Aṣṭādhyāī and Kātyāyana’s Vārttikas.This specific Chaukhamba Prakashan edition is highly regarded by scholars and students for its textual authenticity and clear Devanagari typography.The work is structured into Āhnikas (daily lessons), offering deep insights into the science of linguistics, morphology, and the philosophy of the Sanskrit language.It serves as an essential reference for advanced Sanskrit learners, researchers in Indology, and anyone studying the traditional Indian system of grammar.