Find the odd word in the given set.
1. Indian National Congress, Bharatiya Janata Party, Shiv Sena, Communist Party of India (Marxist).
2. Nationalist Congress Party, All India Anna Dravida Munnetra Kazhagam, Telugu Desam Party, Akali Dal.
3. National Students Union of India, Hind Mazdoor Sangh, Akhil Bharatiya Vidyarthi Parishad, Student Federation of India.
Please answer the above question.