India Toll-Free Nos. Directory (Letter M)
| M-Tech Developers | 1800-11-6363 |
| Ma Foi Academy | 1800-44-6800 |
| Maersk India | 1800-22-5556 |
| Magicbricks | 1800-200-4050 |
| Mahindra | 1800-22-6075 |
| Mahindra 2 Wheelers | 1800-233-8883 |
| Mahindra First Choice | 1800-102-4800 |
| Mahindra Renault | 1800-22-6006 |
| Make My Trip.Com | 1800-11-8687, 1800-102-8687, 1800-11-8747, 1800-102-8747 |
| Manav Rachna International University (MRIU) | 1800-102-0707 |
| Manipal University | 1800-425-6243 |
| Manmar Technologies | 1800-33-4420 |
| Manupatra | 1-800-180-3550 |
| Manya Education | 1800-102-4646 |
| Marathon Electric | 1800-419-1500 |
| Marriott - Reservation | 1800-22-0044 |
| Marshal's Point | 1800-33-4488 |
| Maruti Suzuki | 1800-1800-180 |
| Matrix | 1800-11-1500 |
| Max New York Life | 1800-180-5577, 1800-200-5577 |
| Max Vijay | 1800-419-4194 |
| MBD Alchemie | 1800-200-2233 |
| MDIndia Healthcare Services | 1-800-233-1166 |
| MDLR Airlines | 1800-103-1800 |
| Med Save Health Care | Third Party Administrator (TPA) - 1800-11-1142 |
| Medical University of South Carolina (MUSC) USA | 1800-103-0006 |
| Medicare TPA Services - Third Party Administrator (TPA) | 1800-33-3339 |
| Mercedes-Benz | 1800-102-9222 |
| Metlife | 1800-425-6969 |
| Metro Cash & Carry | 1800-425-0099 |
| Metro Cash & Carry India | 1800-425-0099 |
| Micro Technologies | 1800-209-2000 |
| Microsoft | 1800-11-1100, 1800-102-1100 |
| Ministry of Health and Family Welfare (MOHFW), Government of India (GoI) | 1800-11-4377 |
| Ministry of Overseas Indian Affairs (MOIA), Government of India (GoI) | 1800-11-3090 |
| Mirae Asset Mutual Fund | 1800-102-0777 |
| MIT School of Distance Education (MITSDE) | 1800-233-6376 |
| Mitzvah Engg. Inc | 1800-180-1120 |
| MMTC Retail | 1800-180-0000 |
| Mom & Me | 1800-103-0606 |
| Monster.com | 1800-425-4032, 1800-419-6666 |
| Morphy Richards | 1-800-22-6722 |
| Moserbaer | 1-800-11-1113 |
| Moserbaer Home Video | 1800-22-1099, 1800-102-1099 |
| Motorola (MotoAssist) | 1800-11-1211 |
| Mrs Bector's Food Specialities | 1-800-180-2254 (Sauce Division) / 1-800-180-2045 (Biscuit Division) |
| MTNL Mobile Service | 1800-11-5151 |
| MTNL Trustline | 1800-11-8855, 1800-22-4411 |
| Mumbai Educational Trust (MET) | 1800-22-0234 |
| MVL Limited | 1800-102-2288 |
| MyPlayWin.com | 1-800-22-9292, 1-800-22-9393 |
