Archbishop Kagithapu Mariadas was born on 7 September 1936 in Gnanapuram in Visakhapatnam Diocese.
He was ordained a priest on 10 June 1961 in the Congregation of Missionaries of Francis de Sales.
Pope John Paul II appointed him as the Bishop of Visakhapatnam on 10 September 1982 and he was installed on 26 January 1983.
On 3 July 2012, Pope Benedict XVI accepted his resignation from the pastoral care of the Diocese of Visakhapatnam.
[2] As a tradition Archbishop Kagithapu Mariadas's burial took place in St. Peter's Cathedral in Gnanapuram, Visakhapatnam on 28 February 2018.