Mother Teresa of Calcutta was declared a Saint today, to much fanfare, in St. Peter's Square of Vatican City. Pope Francis canonised the Nobel laureate and former nun, celebrated the world over for her decades spent caring for the destitute in the slums of Calcutta, India.

The ceremony at St. Peter's Basilica | Source: Twitter/@timesofindia

Pope Francis presided over the ceremony | Source Reuters

Tens of thousands of pilgrims and followers flocked to St. Peter's Basilica today to attend Sunday Mass and the canonization ceremony of Mother Teresa.

Crowds started arriving at St Peter's Square since dawn to attend Sunday Mass and the canonization | Source: Twitter/@Timesofindia

On being asked to canonize her in the name of the Church, the Pope said:

"After due deliberation and frequent prayer for divine assistance, and having sought the counsel of many of our brother bishops, we declare and define Blessed Teresa of Calcutta to be a saint and we enrol her among the saints, decreeing that she is to be venerated as such by the whole Church."

Pope Francis along with Cardinal Angelo Amato during the canonization ceremony | Source: Twitter @timesofinoda

The Pope led the ceremony of the induction:

Source: Reuters

Many tweeted about the occasion:

A banner with Mother Teresa's picture on it hangs from the walls of St Peter's Basilica in the Vatican | Source: Reuters

The canonization of the former nun was attended by almost 100,00 people including 1,500 homeless people, along with 15 heads of states, including Spain's Queen Sophia, West Bengal Chief Minister Mamata Banerjee, Delhi Chief Arvind Kejriwal and External Affairs Minister Sushma Swaraj among others.

Sushma Swaraj along with the Indian delegation in St. Peter's Square | Source: Twitter/@timesofindia

In India, The Missionaries of Charity, founded by Mother Teresa, with over 4,500 nuns enrolled worldwide, celebrated the canonization. The occasion was also celebrated Skopje, in modern Macedonia, St Teresa's place of birth.

Celebration in Kolkata | Source:Twitter

Here are so me more pictures from the Vatican :

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Feature Image Source: Reuters