Ancient kingdom, northern India.
Roughly corresponding to the historical region of Oudh , in what is now south-central Uttar Pradesh state, it extended into present-day Nepal. In the 6th century BC it rose to become one of the dominant states in northern India. The Buddha was born there. Magadha conquered Kosala с 490 BC, and it became known as Northern Kosala to distinguish it from a larger kingdom to the south known variously as Kosala, Southern Kosala, or Great Kosala.