In 1923, during the Red Terror, he was arrested and exiled to Persia whence he moved to France. In a few years, he was allowed to return and he lived in his native village Sasireti, far from political life. During the Great Purges, however, he was arrested and executed without a trial in 1937. In the 1950s, Mazniashvili's son, a World War II veteran of the Soviet army, submitted a request for a political rehabilitation of his father, but this was turned down by the authorities.Ministry of Internal Affairs of Georgia (July 2008), The Archival Bulletin #2, pp. 10-15 Soldiers Memories (In Georgian)
