Institutional Timeline
Diocese of Calcutta & St. Thomas Mission, Bhilai
| Sl. | Name of Institution | Place | Estd. |
| 1 | Christian College of Engg. & Technology | Bhilai (C.G) | 1999 |
| 2 | St. Thomas College | Bhilai (C.G) | 1984 |
| 3 | MGM College | Dimapur (Nagaland) | 2016 |
| 4 | St. Thomas College | kailash Nagar, Industrial Estate, Bhilai (C.G) | 2022 |
| Higher Secondary School | |||
| 4 | M.G.M. Higher Secondary School (Cannan Garden) | Bhopal, Madhya Pradesh | 1992 |
| 5 | M.G.M.Higher Secondary School | Bokaro, Jharkhand | 1988 |
| 6 | M.G.M.Higher Secondary School (Hathital) | Jabalpur, Madhya Pradesh | 1978 |
| 7 | M.G.M. Higher Secondary School | Rourkela, Orissa | 1972 |
| 8 | St.Mary’s Higher Secondary School (English / Hindi Medium) | Jabalpur, Madhya Pradesh | 1978 |
| 9 | Mar Baselios Vidhya Bhawan | Bhilai (C.G) | 1983 |
| 10 | M.G.M.Hr.Sec.School | Bagdona (M.P) | 1994 |
| 11 | M.G.M.Hr.Sec.School | Dimapur (Nagaland) | 1985 |
| 12 | M.G.M.Hr.Sec.School | Itarsi (M.P) | 1993 |
| 13 | M.G.M.School | Jagdalpur (C.G) | 2002 |
| 14 | M.G.M.Hr.Sec.School (E/H Medium) | Korba (C.G) | 1979 |
| 15 | M.G.M.Hr.Sec.School | Dawakala (M.P) | 1994 |
| 16 | M.G.M School | Bilaspur, Chhattisgarh | 2001 |
| 17 | M.G.M.School | Dhanpuri (M.P) | 1999 |
| 18 | M.G.M Hr. Sec.School | Raipur (C.G) | 1992 |
| High School | |||
| 19 | M.G.M School | Patna, Bihar | 2000 |
| 20 | St.Gregorios Educational Institution | Calcutta, Bangal | 2006 |
| 21 | M.G.M.School (Shubash Nagar) | Bhopal Madhya Pradesh | 1992 |
| Upper Primary School | |||
| 22 | M.G.M Public School | Shanti Nagar, Bhilai | 2016 |
| 23 | MGM Public School | Tathiband Raipur(CG) | 2017 |
| 24 | MGM Model School | Naya Raipur (CG) | 2017 |
| 25 | MGM Public School | Rajnandgaon (CG) | 2016 |
| 26 | MGM Public School | Guru Ameri- Bilaspur | 2018 |
| Primary School | |||
| 27 | MGM Public School | Gopalpur, Shadol (M.P) | 2017 |
| Pre- Primary School | |||
| 28 | St. Gregorios Mission School | Sagar (M.P) | 2013 |
| 29 | M.G.M Kintergarten School | Chhend, Rourkela, Orissa | 2013 |
| 30 | St.Mary’s Nursery School | Ranchi, Jharkhand | 2010 |
| 31 | St. Mary’s Nursery School | Jamshedpur, Jharkhand | 2007 |
| 32 | St.Mary’s Nursery School | Bokaro (Jharkhand) | 1976 |
| 33 | St. Mary’s Mission School | Itanagar ( A.P) | 2014 |
| 34 | M.G.M Kamalini School | Korba (C.G) | 2007 |