Some of the historical documents that explains the 'Antioch-Malankara' relationship that continued for the beginning
1. Mavelikara Padiyola
2. Muluanthurithy Padiyola
3. Patriarchal Encylical Permitting the additions to the Diptychs used in Malankara.
4. Patriarchal Encylical permitting the additions to the Quqalyon for the Saints (Zadeeko).