ShivSena is an Indian far-right regional political party. Its ideology is based on pro-Marathi ideology and Hindu nationalism (Hindutva), founded on 19 June 1966 by political cartoonist Shri Balasaheb Thackeray. The party originally emerged from a movement in Mumbai demanding preferential treatment for Maharashtrians over migrants to the city. It is currently headed by Shri Uddhav Saheb Thackeray. Members of ShivSena are referred to as ShivSainiks.