Kaveri Madathu Kizhavar by Ka. Na. Subramaniam (Ka.Na.Su.) is a deeply reflective Tamil novel that explores themes of tradition, wisdom, and the passage of time. The title, which translates to "The Old Man of the Kaveri Riverbed," symbolizes the connection between human life and the ever-flowing river, representing change, continuity, and resilience.

Through rich storytelling and philosophical depth, Ka.Na.Su. portrays the life experiences of the protagonist, whose wisdom and insights mirror the cultural and historical significance of the Kaveri River. The novel beautifully captures the essence of rural Tamil Nadu, blending folklore, nostalgia, and introspection, making Kaveri Madathu Kizhavar a timeless and thought-provoking literary masterpiece.