Khandavaprastha . But with the help of Yudhisthira's cousin Krishna , a new city, Indraprastha , was constructed by the Deva architect Viswakarman . The Asura architect Mayasura constructed the Mayasabha , which was the largest regal assembly hall in the world. Yudhisthira was crowned king of Khandavaprastha and Indraprastha. As