The DMI extends its services by providing high quality and disciplined basic education through its primary schools, higer secondary schools and international residential schools, polytechnic colleges, engineering colleges and arts & science colleges at Chennai, Thiruvallur, Thirunelveli  and Kanceepuram in Tamil Nadu. We are providing higher studies in arts and science subjects through our St. Joseph's Arts and Science College at Chennai and higher technical education through our DMI engineering college at chennai and Loyolla Institute of Technology at kanceepuram

To uplift and provide higher educational facilities in Tanzania and Zambia, we are running engineering and polytechnic colleges at the respective places. DMI has got the special permission from Zambian Government to start a university there. It is under the process of commencement.