Original sentence: After the arrival of Indo-Aryans, the kingdom of Gangaridai was formed from at least the seventh century BCE, which later united with Bihar under the Magadha and Maurya Empires.The exact origin of the word "Bangla" or "Bengal" is unknown, though it is believed to be derived from Bang, the Dravidian-speaking tribe that settled in the area around the year 1000 BCE
Edited sentence: After the arrival of Indo-Aryans, the kingdom of Gangaridai was formed from at least the seventh century BC, which later united with Bihar under the Magadha and Maurya Empires.The exact origin of the word "Bangla" or "Bengal" is unknown, though it is believed to be derived from Bang, the Dravidian-speaking tribe that settled in the area around the year 1000 BC