Explanation:

Nirmal Mahto was a political activist and prominent leader of Jharkhand Mukti Morcha. He was founder of All Jharkhand Students Union. He was prominent leader in movement for separate state of Jharkhand. In 1980, due to controversy, Shibu Soren and Binod Bihari Mahato drifted apart. A. K. Roy also left. Shibu Soren appointed Mahato as president and himself as general secretary of Jharkhand Mukti Morcha. Mahato perceived that to fight for Jharkhand with just support of Jharkhand Mukti Morcha will be difficult. For this a stronger movement was required and it was decided to form a student union of Jharkhand Mukti Morcha.