Rev. Mathew Joseph, B. Com, BD hails from Karakkal, Thiruvalla. Achen's home parish is St. Thomas Mar Thoma Church Karakkal, Kerala. Achen completed his college education in Thiruvalla and the theological education in Chennai.
Before joining to St. Paul's Mar Thoma church Dallas in 2018, Achen served the following parishes: St. Thomas Mar Thoma Church Kallar, Idukki, St. Mary's Union Church Pulenmala, Immanuel Mar Thoma Church Nedumkandam, St. Thomas Mar Thoma Church Ezhumattor, Ebenezer Mar Thoma Church Karamala, St. Thomas Mar Thoma Church Parakkathanam, St. John's Mar Thoma Church Chelakombu, St. Thomas Mar Thoma Church Puliyoor, Chengannoor. Achen also served as the director of Asraya Old Age Home Mallappally and SnehaJyothi Balikabhavan Mallppally.