Mahabharata period
The Mahabharata Book 2: Sabha Parva SECTION XXXI locates Trigartas along with Dasharnas, the Sivis, the Amvashtas, the Malavas, the five tribes of the Karnatas around Rohtak in Haryana as under:
Vaisampayana said,--"I shall now recite to you the deeds and triumphs of Nakula, and how that exalted one conquered the direction that had once been subjugated by Vasudeva. The intelligent Nakula, surrounded by a large host, set out from Khandavaprastha for the west, making this earth tremble with the shouts and the leonine roars of the warriors and the deep rattle of chariot wheels. The hero first assailed the mountainous country called Rohitaka that was dear unto (the celestial generalissimo) Kartikeya and which was delightful and prosperous and full of kine and every kind of wealth and produce. The encounter the son of Pandu had with the Mattamyurakas of that country was fierce. And the illustrious Nakula after this, subjugated the whole of the desert country and the region known as Sairishaka full of plenty, as also that other one called Mahetta. And the hero had a fierce encounter with the royal sage Akrosa. The son of Pandu left that part of the country having subjugated the Dasarnas, the Sivis, the Trigartas, the Amvashtas, the Malavas, the five tribes of the Karnatas, and those twice born classes that were called the Madhyamakeyas and Vattadhanas. Making circuitous journey that bull among men then conquered the (Mlechcha) tribes called the Utsava-sanketas."
Aulikaras of Dashapura
Epigraphical discoveries have brought to light two ancient royal houses, who call themselves as Aulikaras and ruled from Dashapura (present-day Mandsaur). The first dynasty, who ruled from Dashapura from the beginning comprised the following kings in the order of succession: Jayavarma, Simhavarma, Naravarma,
