Complex sentence: He and the other villagers believe, according to prevalent Hindu tradition, that the young bride must be wedded off during the previously appointed auspicious hour, otherwise, she will have to remain unmarried all her life.
Split into simpler sentences: He and the other villagers believe, according to prevalent Hindu tradition, that the young bride must be wedded off during the previously appointed auspicious hour. Otherwise, she will have to remain unmarried all her life.