The Last Supper masterpiece was painted by Leonardo da Vinci in the Medieval period at Milan (Italy) but the one decorating the main altar of Sacred Heart Cathedral (few are aware) is a marvellous early 20th century work by a German Capuchin friar. 

The Apostles, who shared the supper with Christ a day before his death, are not depicted in the mural. The models used were Capuchin friars Minor, working in Agra Archdiocese at the time of the building of the cathedral, under the orders of Archbishop Evangelisti Vanni. 

Judas, the disciple, who betrayed Christ, is shown as a dark hooded shadow. The others in the painting are: Fr Xavier, chaplain of Jesus and Mary sisters in Simla; Fr Ulric, a famous musician and organist, Fr Luke Vannucci, who models for St Andrew; Fr Declan, chaplain for J and M nuns at Eagle Mount; Father Hyacinth, Rector of St Peter’s College, Agra, a noted researcher, who wrote the "History of the (Catholic) Tibet – Hindustan Mission" and is also the one who discovered the tomb of Geromeo Veroneo, credited with helping in the designing of the Taj; Fr Basil, an Irishman, depicts Jesus; Fr Daniel, who later worked in Aden; Fr Linus, Fr Ignatius, assistant priest; Fr Adeodatus, a musician and dehati (rural dialect) singer,murdered while in charge of the chruch of Begum Sumroo at Sardhana by an orphan he had brought up; Fr Gabriel, parish priest of St Teresa’s school Delhi, and Fr Bonaventure, also a parish priest. 

"The main altar and the central aisle are aligned with Pandit Pant Marg. Therefore, it is theoretically possible for the priest celebrant to view Rastrapati Bhawan while offering Mass." This is stated in "Like a Mustard Seed – History of the Archdioceses of Delhi" by Fr Augustine Kuriapilly. The author, who launched his book recently, goes on to say, "There is no denying that town planning played a role in the aisle alignment by the builder, Fr Luke and the architect Henry Medd."