Thiruvarur Viruttachala Kalyanasundaram (Thiruvarur Virudhachala Kalyanasundaram : 26 August 1883 – 17 September 1953), better known by his Tamil initials Thiru.
Vi.
Ka, was a Tamil scholar, essayist and activist.
He is esteemed for the strong humanism of his essays, the analytical depth of his commentaries on classical Tamil literature and philosophy, and the clear, fluid style of his prose.
His works, along with those of V.
O.
Chidambaram Pillai, Maraimalai Adigal, and Arumuga Navalar, are considered to have defined the style of modern Tamil prose.