Brief History: The first Catholic Church in Ooty. In 1837 Rev. Fr. Bigot Beauclair visited Ootacamund and within 2 years the construction of a Church was commenced which is now St. Joseph's Primary School. As the catholic population of Ootacamund increased, the original church was found inadequate and a much larger one was constructed in 1870 which is the present church of St. Mary's.
| Address | : | St. Mary's Church, St. Mary's Hill, Udhagamandalam - 643 001. The Nilgiris |
| Telephone | : | 0423 - 2442864 |
| Established | : | 1838 |
| Catholics | : | 4,225 |
| Religious | : | 1. Brothers of St. Michael 2. Francisan Missionaries of Mary 3. Daughters of the Heart of Mary 4. Bon Secours |
| Educational | : | 1. St. Joseph's College of Education 2. Bethlehem Teacher Training Institute 3. St. Joseph's Hr. Secondary School 4. Bethlehem Higher Secondary School 5. Nazareth High School 6. Rex Hr. Sec. School 7. St. Francis Xavier's Middle School, Kuruthukuli 8. St. Theresa's Primary School, Hosatty 9. St. Joseph's Primary School, St. Mary's Hill 10. Bethlehem Primary School, St. Mary's Hill 11. Child Jesus Primary School, St. Mary's Hill |
| Social | : | 1. Loretto Home, Nazareth, Ooty 2. Day Creche , Muthorai. 3. Typewriting Institute, Embroidery & Tuition Centre, Mariakam 4. Classes for poor children, |
Sub – Stations:
| Our Lady of Rosary Church, Rosemount | Infant Jesus Shrine, Upper Bazaar |
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| Our Lady of Vailankanni Church, Muthorai | Christ the King Church, Mullikorai |
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