Complex sentence: The lake was cut drained by Bodhisatwa Manjusri with his sword and the water was evacuated out from there and he established a city called Manjupattan and made Dharmakar the ruler of the valley land.
Split into simpler sentences: The lake was cut drained by Bodhisatwa Manjusri with his sword, and the water was evacuated out from there. He then established a city called Manjupattan, and made Dharmakar the ruler of the valley land.