He was born on 26 June 1884 at Puthencruz, Ernakulam district of the Indian state of Kerala to Thuruthy Chettakulathinkara Abraham Malpan and Annamma of Cheruvillil Valiyal in a Malankara Orthodox Syrian Church family.

He stayed for a few days with the Patriarch of Antioch, Ignatius Abdul Masih II, at the monastery of Mar Abraham in Tur-Abdin.

Then he travelled to Mardin and reached Kurkuma Dayara where he stayed for about nine months and studied several rare books in Syriac.

In 1908 he was elevated to the monastic order of Ramban by Patriarch Ignatius Abdulla at St. Mark's Syrian Orthodox Monastery in Jerusalem.

He provided the information about the deposed Patriarch Ignatius Abdul Masih II to the Metropolitan Vattasseril Dionysius.

Augen Ramban accompanied Patriarch Abdulla and Metropolitan Osthathios to the churches they visited, to translate their speeches.

He was consecrated as Metropolitan by name Thimotheos on 15 May 1927 at Jerusalem by the Patriarch of Antioch and all the East, Ignatius Elias III.

[1] When the re-unified Malankara Association met at Niranam on 17 May 1962, Augen Thimotheos was elected as the successor-designate to the Catholicos of the East Baselios Geevarghese II.

On 22 May 1964, Thimotheos was installed formally as Catholicos Baselios Augen I by the Supreme Head of Church Patriarch of Antioch Ignatius Ya`qub III who had arrived in response to the invitation of the Malankara Synod.

In his speech during the enthronement, the Patriarch told the multitude gathered to witness the occasion: You must conserve the peace established in Malankara very firmly.

If somebody is trying to create problems based on the previous unpleasant events, they will have the fate of the wife of Lot.On 20 November 1964, it was decided to consecrate a few more Bishops, considering the progress of the Church.

On his visit to India to attend the Eucharistic Congress in Bombay, the Pope expressed his wish to exchange greetings with the Supreme Head of the Malankara Orthodox Syriac Church, Augen I Catholicos.

The Pope replied in 470 words, saying that he enjoyed the fact that India was lucky enough to listen to the Gospel at the same time as Europe.

The Patriarch Ignatius Ya'qub III gave a warm reception to the Catholicos and the members of the Indian delegation.

After holding friendly dialogue with the Patriarch, the Catholicos visited Homs, Aleppo, Hesakka, Derik and Mosul.

The Catholicos and the delegation then visited Baghdad, Basra, Bahrain, Qatar and the Malankara Syriac Orthodox Congregations there, and then returned to India.

By the end of March 1966, Augen declared Mar Elia Chapel, Kottayam as the official Thronal Cathedral of the Catholicos of the East.

On 24 August 1966, Augen I elevated Yuhanon Severios, Thomas Thimotheos and Dr. Philipose Theophilos as Metropolitans at Kolencherry St. Peter's & St. Paul's Church.

As Catholicos of the East, Augen I consecrated the Holy Mooron (anointing oil) at the Old Seminary, Kottayam on 21 December 1967.

Supporters of Augen elected Baselios Mathews l as the 5th Catholicose of Malankara Orthodox Syrian Church, after his retirement.