Mahabharata, Book 2, Section XXXIसभापर्व

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. And 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. And 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. And 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. And making circuitous journey that bull among men then conquered the (Mlechcha) tribes called the Utsava-sanketas. And the illustrious hero soon brought under subjection the mighty Gramaniya that dwelt on the shore of the sea, and the Sudras and the Abhiras that dwelt on the banks of the Saraswati, and all those tribes that lived upon fisheries, and those also that dwelt on the mountains, and the whole of the country called after the five rivers, and the mountains called Amara, and the country called Uttarayotisha and the city of Divyakutta and the tribe called Dwarapala. And the son of Pandu, by sheer force, reduced to subjection the Ramathas, the Harahunas, and various kings of the west. And while staying there Nakula sent. O Bharata, messengers unto Vasudeva. And Vasudeva with all the Yadavas accepted his sway. And the mighty hero, proceeding thence to Sakala, the city of the Madras, made his uncle Salya accept from affection the sway of the Pandavas. And, O monarch, the illustrious prince deserving the hospitality and entertainment at his uncle’s hands, was well entertained by his uncle. And skilled in war, the prince, taking from Salya a large quantity of jewels and gems, left his kingdom. And the son of Pandu then reduced to subjection the fierce Mlechchas residing on the sea coast, as also the wild tribes of the Palhavas, the Kiratas, the Yavanas, and the Sakas. And having subjugated various monarchs, and making all of them pay tributes, Nakula that foremost of the Kurus, full of resources, retraced his way towards his own city. And, O king, so great was the treasure which Nakula brought that ten thousand camels could carry it with difficulty on their backs. And arriving at Indraprastha, the heroic and fortunate son of Madri presented the whole of that wealth unto Yudhishthira.

“Thus, O king, did Nakula subjugate the countries that lay to the west—the direction that is presided over by the god Varuna, and that had once before been subjugated by Vasudeva himself!”