When Krishna leave the world , pandavs draupadi were very sad due to Krishna leaving world and yudhistar don't feel like to run kingdom after Krishna went his abode so after running hastinapur for 36 years yudhistar made parikshit next king of hastinapur and appointed yuyustsu to supervise kingdom ( son of dhrithrashtra second wife , she was maid of gandhari ) as well as to guide parikshit in regards of running kingdom and then pandavs and draupadi went to forest