| S.No. | Organization | Contact Number |
|---|---|---|
| 1 | MAAC | 1800-209-6222 |
| 2 | Madhukar Rainbow Children's Hospital | 1800-212-2 |
| 3 | Madhya Pradesh Poorv Kshetra Vidyut Vitaran Company Limited (MPPKVVC) | 1800-233-1266 |
| 4 | Madhya Pradesh State Tourism Development Corporation Limited (MPSTDC) | 1800-233-7777 |
| 5 | Mahanagar Gas Limited (MGL) | 1800-229-944, 1917 |
| 6 | Maharashtra Natural Gas Limited (MNGL) | 1800-266-2696 |
| 7 | Maharashtra State Road Transport Corporation (MSRTC) | 1800-221-250 |
| 8 | Maharishi Markandeshwar | 1800-274-0240 |
| 9 | Mahindra First Choice Services (MFCS) | 1800-224-008 |
| 10 | MakeMyTrip.com | 1860-500-5000 |
| 11 | Malindo Air | 1860-500-8866 |
| 12 | Maliram Jewellers | 1800-121-0899 |
| 13 | Manav Rachna International University | 1800-102-0707 |
| 14 | Manya | 1800-102-4646 |
| 15 | Manyavar | 1800-307-00500 |
| 16 | Marathon Electric India Private Limited | 1800-120-1500 |
| 17 | Marathon Electric Motors (India) Limited | 1800-120-1500 |
| 18 | Maruti Suzuki India Limited | 1800-180-0180 |
| 19 | Maulana Azad National Urdu University (MANUU) | 1800-425-2958 |
| 20 | Max Bupa Health Insurance Company Limited | 1800-301-03333 |
| 21 | Max Life Insurance Company Limited | 1800-200-5577, 1800-200-3383 |
| 22 | Max Life Insurance Company Limited | 1860-120-5577, 1800-200-3383 |
| 23 | Maya Academy of Advanced Cinematics (MAAC) | 1800-209-6222 |
| 24 | Maya Jewels | 1800-102-4480 |
| 25 | MBD Alchemie Private Limited | 1800-200-2233 |
| 26 | Medical Council of India (MCI) | 1800-111-154 |
| 27 | METRO Cash & Carry India Private Limited, Zirakpur | 1860-266-2010 |
| 28 | Metro Motors | 1800-209-5556 |
| 29 | Micro, Small & Medium Enterprise Development Institute (MSMEDI) | 1800-180-6763 |
| 30 | Micromax Informatics Limited | 1860-500-8899 |
| 31 | Milindo Air | 1860-500-8866 |
| 32 | Ministry of Minority Affairs (MMA) | 1800-112-001 |
| 33 | Mitashi Edutainment Private Limited | 1800-102-9705 |
| 34 | Mohandai Oswal Hospital | 1800-1800-7000 |
| 35 | Mom & Me Store | 1800-103-0606 |
| 36 | Monte Carlo Fashions Limited | 1800-1800-501 |
| 37 | Mother Dairy | 1800-425-0175 |
| 38 | MRF Limited | 1800-419-4888 |
| 39 | Mrs. Bectors Food Specialities Limited | 1800-180-2045 |
| 40 | Municipal Corporation | 1800-307-09777 |
| 41 | Municipal Corporation, Gurugram (MCG) | 1800-180-1817 |
| 42 | Municipal Corporation, Panchkula (MCP) | 1800-180-2013 |
Customer Care, Customer Care Numbers, Customer Service, Customer Support, Helpline Numbers, Product Support, Telephone numbers, Toll Free Number, Technical Support, Technical Customer Care