Any education Curriculum must be recognized by its competent authority. Otherwise it cannot justify the very objects of its existence At the very outset the Management applied to the University of Madras for recognition. The University was pleased to know that the R.C.Mission had come forward to undertake this very useful enterprise in the City of Coimbatore. Sincere and serious efforts were made to get this school affiliated to the Madras University. On 2nd May 1966, the University sent the one man commission to inspect the school. Rev. Fr. L. D. Murphy S.J., a very eminent educationist arrived and conducted the inspection. He was satisfied with the upkeep of the school and implementation of the Curriculum and submitted a favourable report to the University. The University insisted that certain things pertaining to endowment, staff and equipment be carried out. The management promptly took necessary steps and satisfied the University.

On Aug. 5^th, even a year in advance, the University granted the school recognition and affiliated Carmel Garden as one of the recognized Matriculation Schools within its jurisdiction.

1966-67 : The University evinced a keen interest in the progress of the school. Time and again it sent instructions regarding staff, working days and syllabi. As there was an unprecedented rush for admission, the accommodation problem became more acute. Without the least hesitation, the management undertook the construction work of the third storey. Now the strength rose to five hundred and two. Consequently the staff strength was like wise raised to 18. A physical Director with University Degree was added to the staff.

1967-68 : When the parents became aware of the recognition of this school, they tried their best to ensure that their sons too would study in Carmel Garden School. More rush was felt. IVth Form (IX Std.) was opened. The University kept a close watch on this and the higher classes. These students will consist of the first batch to write their Matriculation examination in March 1970. The hostel strength rose to 120. Therefore the hostel was remodeled into a terraced building and over it the first floor with tile roofing. Now the strength was six hundred and seventy. Trained graduate teachers were appointed for special subjects like science , Maths etc..

The building work was speedy. Now Rev.Bro.Gnanapragasam took charge of the building work. Energetic by nature, he stood on his toes to see that the work was speeded up and at the same time done properly.

St.Michael's High school bus worn out by strain was no longer fit to serve both schools. There was a real need for a separate bus for this new school. This was proposed to His Excellency. His generosity towards this school was boundless, he immediately sanctioned the necessary amount for an outright purchase of a new bus. On 3rd December 1967, the Patronal Feast Day of His Lordship, the Bishop of Coimbatore, a new coach like ' Tata Mercedes-Benz' bus at the cost of Rs. 77,000 was presented for the use of Carmel Garden school by His Excellency the Bishop.

1968 -69 : This year the number on the rolls rose to 850 and the strength of the staff to 25. The third storey was completed ant it was occupied by the higher forms. The standard of education , maintenance of discipline and formation of good character start attracting parents even from abroad. Parents from Malaysia, Africa and the Persian Gulf sought admission for their sons.

In 1970 the very first batch of students appeared for the Matriculation Examination conducted by the University of Madras. All the students came out spectacularly. One of the students stood first in Science at State Level.

The year 1972, Fr.Anthony M. Lawrence was transferred to St.Michael's High School and Rev. Fr. A. Maria Mudiappan was posted as the Principal and Correspondent of Carmel Garden. A man of principles and strict discipline, Rev.Fr.Mudiappan spared no efforts to build the institution in its varied facets and held high the flame and fame of Carmel in every sense of the word. In acknowledgement of the devoted service rendered by the staff, he introduced the Gourp Gratutity Insurance Scheme with the LIC., so that, the retiring staff could have a reward for their selfless service in the school.