| S.No. | Organization | Contact Number |
|---|---|---|
| 1 | N. C. Medical College & Hospital | 1800-180-2580 |
| 2 | NABFINS Limited | 1800-102-4205 |
| 3 | Nagar Nigam Bareilly (BNN) | 1800-180-3817 |
| 4 | Nagarjuna Fertilizers and Chemicals Limited (NFCL) | 1800-425-1128 |
| 5 | Nanda Feeds Private Limited | 1800-103-1310 |
| 6 | National Anti Doping Agency (NADA) | 1800-119-919 |
| 7 | National Board of Examinations in Medical Sciences (NBEMS) | 1800-111-800 |
| 8 | National Center for Sustainable Aquaculture (NaCSA) | 1800-425-2374 |
| 9 | National Commission for Minorities (NCM) | 1800-110-088 |
| 10 | National Commission For Scheduled Castes (NCSC) | 1800-118-888 |
| 11 | National Commission for Scheduled Castes (NCSC) | 1800-180-0345 |
| 12 | National Commodities Management Services Limited (NCML) | 1800-103-1599 |
| 13 | National Council for Hotel Management & Catering Technology (NCHMCT) | 1800-180-3151 |
| 14 | National Fisheries Development Board (NFDB), Hyderabad | 1800-425-1660 |
| 15 | National Handloom Development Corporation Limited (NHDC) | 1800-208-9988 |
| 16 | National Institute for Empowerment of Persons with Multiple Disabilities (DIVYANGJAN) (NIEPMD) | 1800-425-0345 |
| 17 | National Institute of Open Schooling (NIOS) | 1800-180-9393 |
| 18 | National Insurance Company Limited | 1800-345-0330, 1800-123-230230 |
| 19 | National Insurance Company Limited (NIC) | 1800-345-0330, 1800-123-230230 |
| 20 | National Medical Commission (NMC) | 1800-111-154 |
| 21 | National Medicinal Plants Board (NMPB) | 1800-120-5778 |
| 22 | National Payments Corporation of India (NPCI) | 1800-120-1740 |
| 23 | National Pharmaceutical Pricing Authority (NPPA) | 1800-111-255 |
| 24 | National Scheduled Castes Finance and Development Corporation (NSFDC) | 1800-110-396 |
| 25 | National Securities Depository Limited (NSDL) | 1800-102-0990, 1800-224-430 |
| 26 | National Trust For the Welfare of Persons with Autism Cerebral Palsy, Mental Retardation & Multiple Disabilities | 1800-116-800 |
| 27 | NatureFresh Life | 1800-102-0401 |
| 28 | NCL VEKA Limited | 1800-266-0106 |
| 29 | Neesa Leisure Limited | 1800-200-1188 |
| 30 | NeoLacta Lifesciences Private Limited | 1800-103--2456 |
| 31 | Nestle India Limited | 1800-103-1947 |
| 32 | Netmagic Solutions Private Limited | 1800-103-3130 |
| 33 | New Delhi Institute of Management (NDiM) | 1800-419-0606 |
| 34 | New Mangalore Port Authority (NMPA) | 1800-599-1222 |
| 35 | NIIT | 1800-102-6448 |
| 36 | NIIT Academy | 1800-3000-6448 |
| 37 | NIIT University | 1800-103-5050 |
| 38 | Nik Baker's | 1800-137-3232 |
| 39 | Nikamal Limited | 1800-121-9115 |
| 40 | Nikitasha Home Appliances Private Limited | 1800-345-6789 |
| 41 | Nikon India Private Limited | 1800-102-7346 |
| 42 | Nilkamal Limited | 1800-121-9115 |
| 43 | Niva Bupa Health Insurance Company Limited | 1800-309-3333, 1860-500-8888 |
| 44 | Noida Metro Rail Corporation Limited (NMRC) | 1800-180-0247 |
| 45 | Noni Bio-Tech Private Limited | 1800-301-03010 |
| 46 | Norden Communication Private Limited | 1800-102-3295 |
| 47 | North Eastern Electricity Supply Company of Odisha Limited (NESCO) | 1800-345-6718 |
| 48 | Nova IVI Fertility | 1800-103-2229, 1800-102-9417 |
| 49 | NR Wardrobe Fuss Private Limited | 1800-212-0085 |
| 50 | NTT DATA Payment Services India Limited | 1860-266-4959 |
| 51 | Nuga Best Thermotherapy Centre | 1800-200-3885 |
| 52 | Nuga Medical India Private Limited | 1800-200-3885 |
| 53 | Numeric | 1800-425-3266 |
| 54 | NutraCulture India Limited | 1800-102-3444 |
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