Censor.NET reports citing the statement by the president's press office.
Gaidar was appointed by the decree No. 83/2017.
Maria Gaidar is great-granddaughter of outstanding Russian writer Arkady Gaidar and daughter of famous Russian politician Yegor Gaidar, who developed and implemented economic reforms in Russia in early 1990s.
Mikheil Saakashvili proposed her a post of his deputy in July 2015. Poroshenko granted her Ukrainian citizenship and personally handed a Ukrainian passport in August 2015.
Gaidar resigned from the post in the Odesa Regional State Administration in May 2016.