Answer: Anguttara Nikaya
Notes: Vajji confederacy was located north of the Ganges in Bihar and extended up to the Madhesh region. It was one of the principal mahajanapadas of Ancient India. Buddhist text Anguttara Nikaya included Vajj in the list of Sixteen Mahajanapadas. The name Vajji was derived from one of its ruling clans, the Vrjis.
