
With Mor Gregorius Geevarghese Chathuruthy of Parumala and Mor Athanasius Paulos Kadavil of Aluva, Mor Dionysius engaged himself in the task of rejuvenating the church. He brought about much needed structure to the administration of the Church and started theological seminaries. In 1870, he started a Syriac printing press, Saint Thomas, at Cochin, for publishing Syriac prayer books. At around the same time he started a Church magazine 'Kerala Pathaka' in Malayalam, which was later merged with another news magazine, 'Paschimathara'. Unfortunately this Church magazine was discontinued due to financial problems. But again in January 1892, another monthly, 'Edavaka Patrika' started publication from Kottayam Marthoma Press.During his tenure as Malankara Metropolitan, a large gathering of Roman Catholics from Goa, joined the Suryani Church. Fr. Alvarez, a member of this group, was later consecrated as Metropolitan Mor Yulios by Mor Dionysius in 1889. Due to the influence of Metropolitan Mor Yulius, another group of Roman Catholics from Ceylon and America too joined the Suryani Church. Their leader Fr. Rene Villate was ordained as Metropolitan Mor Timotheos in 1892.
He also started a new Seminary at Kottayam (M.D Seminary) along with an English medium school. He had great care for the comming generations and this made him start new schools through out Kerala.
St. Geevarghese Mar Dionysius Vattasseril, Malankara Metropolitan, was a bright light for the Malankara Orthodox Syrian Church that illumined during her dark and tumultuous times and possessed the vision to bring the Church triumphantly from the bonds of foreign oppression. Thirumeni dedicated his entire life to secure the freedom and welfare of the Holy Church. His Grace faced many troubles and obstacles as well as received constant physical and verbal abuse via threats and physical attacks as he courageously led the Church to her independence. He confronted the dangers and obstacles directly responding with vigor, strength and remarkable conviction and confidence in God’s justice and plan, which was a product of his continual fasting and prayer. God protected Thirumeni throughout his life whether in Kerala or abroad as he sought the freedom of the Church from foreign powers. His great triumph lay in the ability to unite the entire Church, both the priests and laymen to follow his lead. He was incredibly gifted in many fields, a multifarious genius. He was a spiritual leader, a theological educator, scholar of languages, literature and traditions. He was a dignified, valorous and noble personality with a remarkable commanding power.