He was educated as a music and academic scholar at Merchant Taylors School, London and then at the Royal Academy of Music, London, the University of Southern California, Los Angeles, the Banff Center for the Arts, Alberta, Canada, and the Juilliard School, New York City.
[1] His principal teachers were John White, and distinguished American pedagogues and former students of William Primrose, Donald McInnes and Karen Tuttle.
Pillai has performed as soloist under the batons of Christian Zacharias, Eiji Oue, Andrew Parrott, Christopher Hogwood, Robert King and Lawrence Foster, with the English, Gulbenkian, Czech, Andorran and Scottish Chamber Orchestras, as well as I Musici, London and New York, several Spanish orchestras and collaborated with the likes of Lynn Harrell, the Kreutzer and Brodsky Quartets, and the Ensemble Modern, Frankfurt.
His recordings include sonatas by Brahms, Bax, Debussy, Lluís Benejam, Felipe de los Rios, Juan Oliver Astorga, Mendelssohn, Naumann, Glinka, Schubert, Gerhard, and concerti by Hoffmeister, Mozart, Leonardo Balada and Josep Soler.
Pillai edited the 12 Estudios o caprichos de mediana dificultad (12 Studies or Capriccios of Medium Difficulty) for viola solo (1881) by José María Beltrán Fernández (1827–1907), published by Clivis Publications.