By the Apostolic Bull "Quandoquidem Christus" of February 20, 1956, the present civil district of Meerut, Saharanpur, Muzaffarnagar, Dehra Dun, Rampur, Moradabad, Bijnor, Garhwal, Tehri, Chamoli, Uttarkashi, Ghaziabad, and Haridwar in west (U.P) were detached from the Archdiocese of Agra and formed into the Diocese of Meerut.

In May 1972, the new Diocese of Bijnor was formed the districts of Bijnor (excluding Dhampur Tehsil), Garhwal, Tehri, Uttarkashi and Chamoli, taken from Meerut Diocese.

The boundaries of Meerut Diocese are: north -Diocese of Bijnor: south-Agra Archdiocese; east-Lucknow and Bareilly dioceses west-Delhi Archdiocese and Simla-Chandigarh Diocese.

The Church of Our Lady of graces, Sardhana, was raised to the dignity of a minor Basilica by Pope John XIII on December, 13, 1961.