In 1974, the Apostolic Carmel Congregation underwent a significant reorganization into Provinces, with Calcutta designated as the headquarters of the newly formed Northern Province. This Province encompassed a vast region including Bengal, Orissa, Uttar Pradesh, Assam, Meghalaya, Nagaland, and the Andaman and Nicobar Islands.
Initially, the Provincial House in Gariahat proved inadequate due to its small size and noise levels. After an extensive search, a suitable property owned by Mr. B.K. Dutta at 96 Moore Avenue was identified. On December 12, 1977, the property was purchased, and by June 11, 1978, the new Provincial House, named Carmel Training Centre, was established at this location.
The Carmel Training Centre served as a hub for training junior sisters and candidates, fostering a strong spiritual foundation under the leadership of Sr. Blanda, who was reappointed in 1977.
In 1983, under the direction of Sr. Freda, significant expansions were undertaken at the Provincial House, including the addition of a chapel, reflecting the growth and development of the Northern Province.
An important milestone for the Province occurred on June 19, 1990, when the Superior General issued a decree to divide the Northern Province into two smaller entities due to its extensive size. This division marked the establishment of a new Province with 17 convents spread across West Bengal, Orissa, Assam, Meghalaya, Nagaland, and the Andaman and Nicobar Islands, thereby allowing for more focused administration and mission work within the region.