Complex sentence: Gopabandhu's political exposure began with Utkal Samillani in 1903, but he persuaded others to merge this with the National Congress to make the Oriya movement a part of the Indian National Movement.
Split into simpler sentences: Gopabandhu's political exposure began with Utkal Samillani in 1903. But he persuaded others to merge this with National Congress to make Oriya movement a part of Indian National Movement.