Answer: Gandhara
Notes: The Buddhist literature, particularly the Anguttara Nikaya lists the sixteen mahajanapadas given as – Gandhara, Kamboja, Assaka, Vatsa, Avanti, Surasena, Chedi, Malla, Kuru, Panchala, Matsya, Vajji, Anga, Kosala and Magadha.The state of Gandhara roughly corresponded to modern Kashmir and extended upto the Kabul valley. Its capital was Taxila which was a famous seat of learning where scholars came from all over the world.
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