Narvadeshwar Tiwari is a Sanskrit grammarian and philosopher. His scholarly work delves into the intricate aspects of Sanskrit linguistic theory, particularly concerning the concept and nature of time (Kala) as interpreted across different grammatical traditions. He is the author of शाब्दिकनये कालस्वरूप पर्यालोचनम (Shabdikanaye Kalaswaroop Paryalochanam), a critical examination of the concept of time in the context of verbal semantics.