| S.No. | Organization | Contact Number |
|---|---|---|
| 1 | MAAC | 1800-209-6222 |
| 2 | Maahi Milk Producer Company Limited (MMPCL) | 1800-274-0732 |
| 3 | Macfos Limited | 1800-266-6123 |
| 4 | Madhukar Rainbow Children's Hospital | 1800-212-2 |
| 5 | Madhya Gujarat Vij Company Limited (MGVCL) | 1800-233-2670, 19124 |
| 6 | Madhya Pradesh Poorv Kshetra Vidyut Vitaran Company Limited (MPPKVVC) | 1800-233-1266, 1912 |
| 7 | Madhya Pradesh State Tourism Development Corporation Limited (MPSTDC) | 1800-233-7777 |
| 8 | Magma HDI General Insurance Company Limited | 1800-266-3202 |
| 9 | Mahakali Jewellers | 1800-233-3028 |
| 10 | Mahanagar Gas Limited (MGL) | 1800-229-944, 1917 |
| 11 | Maharani Innovative Paints Private Limited | 1800-102-7143 |
| 12 | Maharashtra Animal & Fishery Sciences University (MAFSU) | 1800-233-3268 |
| 13 | Maharashtra Building and Other Construction Worker's Welfare Board (MBOCWW) | 1800-889-2816 |
| 14 | Maharashtra Metro Rail Corporation Limited (MAHA-METRO) | 1800-270-5501 |
| 15 | Maharashtra Natural Gas Limited (MNGL) | 1800-266-2696 |
| 16 | Maharashtra State Road Transport Corporation (MSRTC) | 1800-221-250 |
| 17 | Maharashtra State Seeds Corporation Limited (MAHABEEJ) | 1800-233-8877 |
| 18 | Maharashtra Tourism Development Corporation Limited (MTDC) | 1800-267-1975 |
| 19 | Maharishi Markandeshwar | 1800-274-0240 |
| 20 | Mahatma Gandhi Medical College and Hospital | 1800-180-6002 |
| 21 | Mahatma Jyotiba Phule Jan Arogya Yojana (MJPJAY) | 1800-233-2200 |
| 22 | Mahatma Phule Backward Classes Development Corporation Limited | 1800-221-978 |
| 23 | Mahindra & Mahindra Financial Services Limited (MMFSL) | 1800-233-1234 |
| 24 | Mahindra First Choice Any Car Service | 1800-224-008 |
| 25 | Mahindra First Choice Services (MFCS) | 1800-224-008 |
| 26 | Mahindra Logistics Limited | 1800-258-6787 |
| 27 | MakeMyTrip.com | 1860-500-5000 |
| 28 | Malindo Air | 1860-500-8866 |
| 29 | Maliram Jewellers | 1800-121-0899 |
| 30 | Manav Rachna International University | 1800-102-0707 |
| 31 | Manipal Health Enterprise Private Limited | 1800-102-4647 |
| 32 | ManipalCigna Health Insurance Company Limited | 1800-102-4462 |
| 33 | Mankind Pharma Limited | 1800-103-4400 |
| 34 | Manya | 1800-102-4646 |
| 35 | Manyavar | 1800-307-00500 |
| 36 | Marathon Electric India Private Limited | 1800-120-1500 |
| 37 | Marathon Electric Motors (India) Limited | 1800-120-1500 |
| 38 | Marc Enterprises Private Limited | 1800-102-0120 |
| 39 | Marengo Asia Hospitals | 1800-309-9999 |
| 40 | Marengo CIMS Hospital | 1800-309-9999 |
| 41 | Maruti Suzuki India Limited | 1800-180-0180 |
| 42 | Maulana Azad National Urdu University (MANUU) | 1800-425-2958 |
| 43 | Max Life Insurance Company Limited | 1800-200-5577, 1800-200-3383 |
| 44 | Max Life Insurance Company Limited | 1860-120-5577, 1800-200-3383 |
| 45 | Maya Academy of Advanced Cinematics (MAAC) | 1800-209-6222 |
| 46 | Maya Jewels | 1800-102-4480 |
| 47 | MBD Alchemie Private Limited | 1800-572-2233 |
| 48 | Medela India Private Limited | 1800-102-3645 |
| 49 | Medvarsity Online Limited | 1800-103-6006 |
| 50 | Meghalaya Transport Corporation (MTC) | 1800-345-3986 |
| 51 | METRO Cash & Carry India Private Limited | 1860-266-2010 |
| 52 | METRO Cash & Carry India Private Limited, Ahmedabad | 1860-266-2010 |
| 53 | METRO Cash & Carry India Private Limited, Amritsar | 1860-266-2010 |
| 54 | METRO Cash & Carry India Private Limited, Bhandup | 1860-266-2010 |
| 55 | METRO Cash & Carry India Private Limited, Binnypet | 1860-266-2010 |
| 56 | METRO Cash & Carry India Private Limited, Borivali | 1860-266-2010 |
| 57 | METRO Cash & Carry India Private Limited, Gagan-Pahad | 1860-266-2010 |
| 58 | METRO Cash & Carry India Private Limited, Ghaziabad | 1860-266-2010 |
| 59 | METRO Cash & Carry India Private Limited, Hosur | 1860-266-2010 |
| 60 | METRO Cash & Carry India Private Limited, Indore | 1860-266-2010 |
| 61 | METRO Cash & Carry India Private Limited, Jaipur | 1860-266-2010 |
| 62 | METRO Cash & Carry India Private Limited, Jalandhar | 1860-266-2010 |
| 63 | METRO Cash & Carry India Private Limited, Kanakapura Road | 1860-266-2010 |
| 64 | METRO Cash & Carry India Private Limited, Kolkata | 1860-266-2010 |
| 65 | METRO Cash & Carry India Private Limited, Lucknow | 1860-266-2010 |
| 66 | METRO Cash & Carry India Private Limited, Meerut | 1860-266-2010 |
| 67 | METRO Cash & Carry India Private Limited, Moosapet | 1860-266-2010 |
| 68 | METRO Cash & Carry India Private Limited, Mysore | 1860-266-2010 |
| 69 | METRO Cash & Carry India Private Limited, Nashik | 1860-266-2010 |
| 70 | METRO Cash & Carry India Private Limited, Seelampur | 1860-266-2010 |
| 71 | METRO Cash & Carry India Private Limited, Shahdara | 1860-266-2010 |
| 72 | METRO Cash & Carry India Private Limited, Surat | 1860-266-2010 |
| 73 | METRO Cash & Carry India Private Limited, Uppal | 1860-266-2010 |
| 74 | METRO Cash & Carry India Private Limited, Vijayawada | 1860-266-2010 |
| 75 | METRO Cash & Carry India Private Limited, Whitefield | 1860-266-2010 |
| 76 | METRO Cash & Carry India Private Limited, Yeshwanthpur | 1860-266-2010 |
| 77 | METRO Cash & Carry India Private Limited, Zirakpur | 1860-266-2010 |
| 78 | Metro Motors | 1800-209-5556 |
| 79 | Micro, Small & Medium Enterprise Development Institute (MSMEDI) | 1800-180-6763 |
| 80 | Micromax Informatics Limited | 1860-500-8899 |
| 81 | Microtek International Private Limited | 1800-102-4447 |
| 82 | Midea India Private Limited | 1800-572-5533, 1800-419-3333 |
| 83 | Milann | 1800-102-8860 |
| 84 | Milann Fertility Center | 1800-102-8860 |
| 85 | Milindo Air | 1860-500-8866 |
| 86 | Ministry of Minority Affairs (MMA) | 1800-112-001 |
| 87 | Mitashi Edutainment Private Limited | 1800-102-9705 |
| 88 | Mitsubishi Electric India Private Limited | 1800-102-2626, 1800-102-9603, 1800-102-1168 |
| 89 | MMTC Limited | 1800-180-0000 |
| 90 | MMTC-PAMP India Private Limited | 1800-313-182182 |
| 91 | Modern Vidya Niketan School | 1800-103-9888 |
| 92 | Modern Vidya Niketan Senior Secondary School | 1800-103-9888 |
| 93 | MOHAN Foundation | 1800-103-7100 |
| 94 | Mohandai Oswal Hospital (MOH) | 1800-180-07000 |
| 95 | Mom & Me Store | 1800-103-0606 |
| 96 | Monte Carlo Fashions Limited | 1800-180-0501 |
| 97 | Mother Dairy | 1800-425-0175 |
| 98 | Mother Dairy Fruit & Vegetable Private Limited | 1800-180-1018 |
| 99 | MRF Limited | 1800-419-4888 |
| 100 | Mrs. Bectors Food Specialities Limited | 1800-180-2045 |
| 101 | Municipal Corporation | 1800-307-09777 |
| 102 | Municipal Corporation Jalandhar (MCJ) | 1800-180-00172 |
| 103 | Municipal Corporation, Gurugram (MCG) | 1800-180-1817 |
| 104 | Municipal Corporation, Panchkula (MCP) | 1800-180-2013 |
| 105 | Mussoorie Dehradun Development Authority (MDDA) | 1800-270-2533 |
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