The chief architect of the Lakshagraha was Purochana, who was even one of the ministers of the Kauravas. Duryodhana had planned to kill the Pandavas much before the actual battle. In order to execute this wish, he had set up Lakshagraha in the deep forest of Varnavrat, far away from anyone's knowledge. His plan was to construct the structure and then set it to fire with his cousins and aunt present inside.