Complex sentence: He was the second son to his father, but a saint told him that he will become the king instead of his first brother senguttuvan.so ilango became a saint and Senguttuvan his brother, became the king after his father's death.
Split into simpler sentences: He was the second son to his father, but a saint told him that he will become the king instead of his first brother senguttuvan. So Ilango became a saint and Senguttuvan his brother, became the king after his father's death.