Uttara Kuru
See the main article Uttara Kuru Kingdom, for more details.
In addition to the Kurus of India ruled by the Pandavas and the Kauravas, there was a kingdom of Uttara Kurus to the north of the Himalayas. Some historians identify this kingdom as Kyrgistan. In an epic about this nation, Bhishma abducted three brides from Kasi kingdom to become brides of his half-brother Vichitavirya. This same custom of abduction of brides by their potential bridegroom or his allies still prevails in Kyrgistan. The border between the states of India and Kyrgistan at the time of the epic is uncertain, but Arjuna collected tribute from Uttara Kuru during his northern military campaign for Yudhisthira's Rajasuya sacrifice. In some places, the epic describes them as ageless and diseaseless. They were also considered to follow a republican constitution with no monarchy.
Read more about this topic: Kuru Kingdom