St. Mary's Church is the first Catholic parish in the city of Noida, India and is dedicated to the Assumption of Our Lady.

flat in Sector-27, Noida was obtained in December 1987 and inaugurated and named as "Maria Sadan" in February 1988.

From 1996 the Orthodox Christians living in Noida were permitted to use the Mass centre until their own church was constructed and consecrated.

The foundation stone for the church was laid on 15 August 1991[1] by the then Archbishop of Agra Diocese, Rev.

The church is situated less than 1 kilometre from Noida Sector 34 metro station On 10 May 1990, the then parish priest Fr.

Johnson Chiryankandath founded a youth group of the parish and named it Noida Catholic Yuva Sangh (NCYS).

Since 1996, the NCYS has been organizing painting competitions [7] every year during church feasts in the nearby Assisi Convent School in Noida.

It also organises annual Christmas processions though various areas of Noida stopping at all five member churches.

On 20 October 2008, Conrad Dominic Xavier, a call centre employee, was found murdered in Maria Sadan in Sector- 27.

[16] Dominic was allowed to live in the Mass centre along with the church helper, as he had told the priest that he was new to the place and had no one to approach in the city.