Amir Ismagulov, a businessman and lawmaker in Atyrau, has been living in Boston the past nine months since his son, Azamat Tazhayakov, was arrested, the newspaper reported.
Tazhayakov, 19, and his roommate, Dias Kadyrbayev, were arrested in April for allegedly helping Tsarnaev destroy evidence after after the attacks, which killed three people and injured 260.
Ismagulov has been in Boston fighting for the release of his son and failed to attend three plenary sessions of the city council, the chairman of the council said.
Ismagulov was also expelled from the ruling Nur Otan party.
Notable deaths of 2014 [PHOTOS]