In a pre-announced move, former Jharkhand CM Champai Soren on Friday joined the Bharatiya Janata Party (BJP) in Ranchi. Two days ago, the former CM and Jharkhand Mukti Morcha (JMM) Champai Soren on Wednesday resigned from JMM while asserting that his decision to join the Bharatiya Janata Party was taken in the interest of Jharkhand.