On 26 July 2002, Mor Dionysius was consecrated Catholicos of India by name Baselios Thomas I in a ritual officiated by Syriac Orthodox Patriarch Moran Mor Ignatius Zakka I Iwas of Antioch and All the East and Supreme Head of the Syriac Orthodox Church, at Maarat Saidnaya, Damascus. As the head of the Jacobite Church in India the Catholicos presides over the Holy Episcopal Synod of Malankara Church which includes all the Metropolitans of the Syrian Orthodox Church in India. He was also the Metropolitan Trustee of the Jacobite Syrian Christian Church.[1]