Complex sentence: Until 1415, they served few positions in the government and were disdained, however this changed with Raja Ganesha's revolution and under the reign of his converted son Jalaluddin Muhammad Shah with many of them gaining emplyment in the government by the time of Alauddin Husain Shah.
Split into simpler sentences: Until 1415, they served few positions in the government and were disdained. However this changed with Raja Ganesha's revolution and under the reign of his converted son Jalaluddin Muhammad Shah, resulting in many of them gaining employment in the government by the time of Alauddin Husain Shah.