Complex sentence: Historical evidence shows that he first settlement of Muslims into the Ilaiyangudi township began during the 15th century at Thuraian Pacher, but some speculate that a section of Muslim population already existed in Ilaiyangudi.
Split into simpler sentences: Historical evidence shows that he first settlement of Muslims into the Ilaiyangudi township began during the 15th century at Thuraian Pachery. But It is also claimed that a section of Muslim population already existed in Ilaiyangudi.