Educated at St. Georges College, Mussoorie, Marthins was the country’s top right inside forward during the 1920s. He was a member of the UnAed Province (now Uttar Pradesh) team which won the National Hockey Championship in 1928.
Selected for Incha’s maiden entry into Olympic Hockey in 1928, he played all the matches during the Olympic Championships at Amsterdam. His combination with Dhyan Chand (centre forward) was deadly and no team could stop them. India won all its five matches without conceding a goal and lifted the world championship for the first time in its debut.