[6][7] Bishop Thomas was born on 14 October 1952 in Bhavnagar, Gujarat.
He was appointed Archbishop of Roman Catholic Archdiocese of Gandhinagar on 12 June 2015 and installed on 12 September 2015 by Pope Francis.
[8][9][10][11] During the 2017 campaign for Gujarat Assembly elections, Archbishop MacWan issued a letter to the Christian community suggesting that they pray for the election of "humane leaders", to "save" India "from nationalist forces".
[12] The Legal Rights Observatory lodged a complaint with the Election Commission of India against the archbishop.
The Election Commission served a notice to the archbishop, asking for an explanation.