Achen had served in KOODAL, RAJAGIRI, ATHIRUMKAL, CHANAPETA, MANNUR, ANCHAL, KANDANCHIRA, ERNAKULAM SALEM, PATHANAPURAM IMMANUEL, PUTHUVAL, PIDAVOOR, PUTHENCAVU, THIRUVANANTHAPURAM, BANGALORE,JALAHALLY, KOLLAM, CHAATHANOOR, KALLUVATHUKAL, PARUTHIPARA, VITHURA, MUMBAI SANTACRUZ, COIMBATORE, BANGLORE
EAST, BANGALORE NORTH parishes.
Achen also served as SABHA COUNCIL MEMBER, DIOCESAN SECRETARY MUMBAI DELHI DIOCESE, VICE-PRESIDENT: DEVANAHALLI MISSION, PRESIDENT: KARNATAKA NAVAJEEVAN SAMITHI (KNS).