Complex sentence: His hypothesis that lunar and solar activity trigger earthquakes has caught attention and he was instrumental in initiating the excavation of the Kadakkarapally boat at Thaikkal, near Chertahla, Kerala.
Split into simpler sentences: His hypothesis that lunar and solar activity trigger earthquakes has caught attention. He was instrumental in initiating the excavation of the Kadakkarapally boat at Thaikkal, near Chertahla, Kerala.