"Fray Anju" is the youngest of six children of the Spouses Juan Castigador and Paz Concepcion of Calinog, Iloilo. After his high school graduation from Mary Immaculate Academy of the OP-Molo in 1976, he joined the Dominican Order and was sent to Aquinas University in Legaspi City for his postulancy. On May 12 of the following year, he received the Dominican habit in Iloilo City where he received his novitiate formation. On May 13, 1978, he took his simple profession in Santo Domingo Church where he stayed as a student-brother. After his college graduation from the Dominican House of Studies and upon the expiration of his vows, he left the religious life and studied law at the Ateneo de Manila University. His professional exposure includes working at the Office of the Solicitor General, being General Counsel of the Philippine Stock Exchange, Inc., managing partner at the Alpaño Angeles & Castigador Law Offices, Customs collector, Vice President Legal Group of Philsteel Holdings Corp., and currently Chairman of the Board of Pacific-Atlantic Business Management Consulting, Inc. In January 2017, he assumed the presidency of Filii Sancti Dominici Philippinensis, Inc. Anju is happily married to Dr. Ma. Corazon Mendoza-Castigador with whom he has two children.