Complex sentence: There were two brothers named See Magar and Chintoo Magar who began to have differences thus while one stayed back the other headed south and after a series of migrations reached the place called Kangwachen.
Split into simpler sentences: There were two brothers named See Magar and Chintoo Magar who began to have differences. As a result, one stayed back and the other headed south and after a series of migrations reached the place called Kangwachen.