He served as chief treasurer of the FKGP from 1945 to 1951. He participated in the reorganization of the FKGP during the Hungarian Revolution of 1956. As a result he was interned in the next year.
Bejczy secured a mandate in the first democratic parliamentary election in 1990.
In February 1992 he joined the United Smallholders" Party (EKGP) which continued to support the Cabinet of József Antall in contrast to the FKGP parliamentary group led by József Torgyán. Bejczy died in 2004.
Independent Smallholders, Agrarian Workers and Civic Party.
He was a member of the Committee on Defence since June 12, 1990 and of the Committee on Audit Office since October 13, 1992.