Shortly after Pandu’s marriage with Kunti and Madri, he went to a forest for hunting. While looking for his prey, amidst the bushes, he spotted a couple of deer and shot his arrow towards it.
When he went to check upon the deers, he saw that the deers were Sage Kindama and his wife. The Sage and his wife were on the brink of dying, and Pandu realised his mistake and begged pardon, but the Sage angered by this act of Pandu, cursed him, that he will die, if he ever touches his wives.
Horrified, Pandu returned to Hastinapur, and told his wives about his curse.
Pandu, filled with guilt, wanted to repent for his actions, so he renounced his throne and left the kingdom.
His wives followed his path and went to the forest to live with Pandu, where he wanted to seek solace and repent for his actions.
Meanwhile, in Hastinapur, Dhritarashtra was crowned as the King of Hastinapur and Gandhari becomes the Queen.