She went to Parliament in 2010. She was a member of the parliamentary group of Lehet Más a Politika (LMP), or Politics Can Be Different Party. On 26 November 2012, she became deputy leader of the LMP parliamentary group.[4]
Osztolykán is an activist for Romani children's education, Roma and minority rights, and the Roma in Hungary. She works for vocational training which helps students get jobs. She also works as a volunteer teacher at a Roma vocational school in Budapest’s poorer Eighth District.[5]