As previously stated, St. Mary's Church was built on July 3, 1825. Because St. Mary's Church is the oldest church in India's mid-western region, it is recognized as the Deccan's mother church. The church was once a part of the Church of England, but it eventually became an independent province of the Anglican Communion. There are additional tributes to several British servicemen who died while fighting for their nation in the chapel.

With a tower on the west end, a winding staircase on the south that leads to the gallery, a vestry (a room or structure connected to a church, used as an office and for changing into ceremonial vestments), and a lamp room on the ground floor, St. Mary's Church is an architectural masterpiece. The church's interior can accommodate up to 1,000 people. The eight circular pillars—four on each side of the nave (the church's central section)—are notable for the expert chuna (slaked lime) plastering that covers them, giving them a marble-like appearance.

Colonel Nasmyth, a Trigonometrical Survey superintendent, designed the stained glass window above the communion table. R.G. Oxenham, Director of Public Construction, designed the windows. Colonel William Morris, one of the survivors of the Battle of Balaclava, fought on October 25, 1854, during the Crimean War, is commemorated in the inside of the chapel with a commemorative inscription.

• The choir of the church has grown to be an integral part of the liturgy.
• Rahul Kaigude founded the Shaalom old age home. The majority of the residents hail from Maharashtra's Baramati district. Some were poor, while others had terrible family difficulties that forced them to flee their homes and seek refuge at the old age home. The tourists can also visit this old age home and if they like, they can donate some amount as charity. 
• At the church, English hymns and psalms are sung, and choir and carol singing classes are held on Sundays, where the visitors can be a part of it and sing along. 
• On Christmas Eve and New Year's Eve, there is a midnight mass. The visitors can also stay and enjoy the huge festival.

• In the church, silence should be maintained. Inside the church, pets are not permitted.
• Morning and evening prayers are both enjoyable to attend, and should not be missed if the church is being visited for the first time.
• Any kind of eatables are not allowed inside the Church. 

The months of November to January are ideal for visiting the church. This is a holistic environment for you if you are spiritual and believe in spirituality. The church is open to visitors every day of the week from 8:00 a.m. to 6:00 p.m. The church is open to the public and no entry fee is applicable.

• Shinde Chhatri, Pune
• St Patrick's Cathedral, Pune
• Ohel David Synagogue, Pune
• Darshan Museum, Pune
• SGS Mall, Pune

• It is renowned as the "mother church of the Deccan" since it is the oldest church in the Deccan region. 
• The church was designed to serve the spiritual needs of British soldiers stationed in Pune and the surrounding areas. 
• Lieutenant Nash of the East India Company's Engineers erected the church.