Oct 5th - The Science and Maths Expo Competition took place in our school campus on October 5, 2023. The Chief guest of the day was Mr. A. L. Rex Venmani B.Sc., M.A., B.Ed., form Punitha Sagya Annai Boys School and Mrs. Mercelin M.A., B.Ed., from Sagya Annai R.C.M. School and Mr. Pathrose M.Sc., B.Ed., form Sacred Heart Matric School Avoor were the Judges of the day. More than 500 student were participated from the classes L.K.G to XII Std.

Oct 7th - Open Day was arranged for the classes L.K.G to XII Std to sign in the student Progress report and to saw their children Quarterly Marks.After the Parents meeting the fifth staff meeting was took place. All the teachers were present for this meeting to discuss about the students performance and the plan of October month.

Oct 9 - 13th - The Cultural week for K.G sections were started in our school campus, Thirukkural recitation, Fancy dress competition, Rhymes Recitation, Dance competition and speech competition were took place on their week. The chief guest and Judge of this week was Mrs. Maria Veena M.B.A., B.Ed., from Kariyandal.

Oct 14th - We arranged a parents meeting for the classes X, XI and XII to discuss about our students performance in their studies.

Oct 16th - Opening ceremony of canteen took place in our school campus. Our Principal Rev. Sr. Sarojini cut the Ribbon and Prayed to inaugurate the canteen.

Oct 17th - The Annual sports meet of 2023 was celebrated in a grand manner. In our school campus. Mr. Raj Mohan B.Sc., B.P.Ed., Retired Army and Physical Director of Danish Mission School was a chief guest of this day.

Oct 20th - English Literary Association inaugural celebration took place on the head of Mrs. E. Keerthana M.A., B.Ed., from Bhagavan Hr. Sec. School, Thiruvannamalai.

Oct 21st - The First Alumni meet 2023 of Mary Immaculate Heart Mat Hr. Sec. School was took place on the head of our Past Pubil Mrs. R. Sinduja, Senior Associate Cognizant Chennai, as chairman, Mr. G. Suriya Narayanan Info Tech Chennai as Secretary and Mr. A. Deny Mathew Post Master, Govt of India as Joint Secretary. Miss T.S. Vanitha and Mrs. S. Sumathi of our school as Coordinators. The Alumni Meet was arranged by our principal Rev. Sr. Sarojini, CTC in a grand Manner.

Oct 27th - The grand Food Fest of 2023 was arranged in our school campus. The chief guest of the day was Rev. Fr. Daniel Sharma, Assistant Parish Priest Punitha Sagaya Annai Church, Pavithram. The day of Food Fest make as a good memorable day of our school.

Oct 31st - A day of chain Rosary was organized for the intentions of the Mary Immaculate Matric School Community.