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In page Ananda Samarakoon:

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One of Samarakoon's early compositions, Namo Namo Mata was nominated as the national anthem and was officially adopted as the national anthem of Ceylon on 22 November 1951, from a committee headed by Sir Edwin Wijeyeratne. Critics attacked Namo Namo Mata, particularly the "Gana" significance of the introductory words (Namo Namo Matha) which designate disease and ill luck. Samarakone was not a believer in "Gana" and the criticism caused him to write numerous articles counterattacking his critics to defend his composition. However, without his consent, the introductory words were changed to "Sri Lanka Mathaa" so that the "Gana" significance now would designate victory and prosperity.