Complex sentence: The older generation of Dadehar has received rites of amrit at the hands of Guru Gobind Singh, and joined the Khasala Army and 40 Mukte that some of them were from Dadehar.
Split into simpler sentences: The older generation of Dadehar has received rites of amrit at the hands of Guru Gobind Singh, and joined the Khasala Army. It said of the 40 Mukte that some of them were from Dadehar.