| S.No. | Organization | Contact Number |
|---|---|---|
| 1 | C.R.I. Pumps Private Limited | 1800-200-1234, 1800-121-1205 |
| 2 | Cadbury Joy Deliveries | 1800-227-080 |
| 3 | Cafe Coffee Day | 1800-102-5093 |
| 4 | Canadian Crystalline Water India Limited | 1800-425-20000 |
| 5 | Canadian Institute for International Studies - CIIS | 1800-180-2007 |
| 6 | Canam Consultants Limited | 1800-137-8055 |
| 7 | Canara Bank | 1800-425-0018 |
| 8 | Canara HSBC Oriental Bank of Commerce Life Insurance Company Limited | 1800-258-5899 |
| 9 | Canara Robeco Asset Management Co. Limited | 1800-209-2726 |
| 10 | Canon India Private Limited | 1800-180-3366, 1860-180-3366 |
| 11 | Canon India Private Limited | 1860-180-3366, 1800-208-33366 |
| 12 | Capital Region Urban Transport (CRUT) | 1800-345-0061 |
| 13 | Capital Small Finance Bank Limited | 1800-120-1600 |
| 14 | Capri Global Capital Limited (CGCL) | 1800-102-1021 |
| 15 | Care Health Insurance Limited (CHI) | 1800-102-4488, 1800-102-4499 |
| 16 | Carl Zeiss India (Bangalore) Private Limited | 1800-103-0403 |
| 17 | Carrier Airconditioning & Refrigeration Limited | 1800-300-03545, 1800-102-1421 |
| 18 | Carrier Midea India Private Limited | 1800-103-3333, 1800-419-3333 |
| 19 | Castrol India Limited | 1800-222-100, 1800-209-8100 |
| 20 | Cata Electrodomesticos India Private Limited | 1800-116-272 |
| 21 | Ceasefire Industries Private Limited | 1800-120-3473 |
| 22 | CECO Electronics Private Limited | 1800-345-8785 |
| 23 | Cello® Writing | 1800-222-608 |
| 24 | Central Adoption Resource Authority (CARA) | 1800-111-311 |
| 25 | Central Bank of India | 1800-221-911 |
| 26 | Central Board of Secondary Education (CBSE) | 1800-118-002 |
| 27 | Central Coalfields Limited | 1800-345-6501 |
| 28 | Central Depository Services (India) Limited (CDSL) | 1800-225-533 |
| 29 | Central Drugs Standard Control Organization (CDSCO) | 1800-111-454 |
| 30 | Central Institute of Psychiatry (CIP) | 1800-345-1849 |
| 31 | Central Pension Accounting Office (CPAO) | 1800-117-788 |
| 32 | Central Vigilance Commission (CVC) | 1800-180-1961 |
| 33 | Centre for Sight | 1800-120-0477 |
| 34 | CENTUM Learning Institute | 1800-103-4457 |
| 35 | Century Plyboards (India) Limited | 1800-200-0440 |
| 36 | Century Plyboards (India) Limited | 1800-572-2122 |
| 37 | Century Plyboards (India) Limited (CPIL) | 1800-572-2122 |
| 38 | CERA Sanitaryware Limited | 1800-258-5500 |
| 39 | Cera Style Studio | 1800-258-5500 |
| 40 | CESC Limited | 1860-500-1912 |
| 41 | Chanakya IAS Academy | 1800-274-5005 |
| 42 | Chanderprabhu Jain College of Higher Studies & School of Law | 1800-117-677 |
| 43 | Chandigarh Sweets Limited | 1800-889-1315 |
| 44 | Chandigarh Tourism | 1800-180-2116 |
| 45 | Chandigarh University | 1800-200-0025 |
| 46 | Chandukaka Saraf And Sons Private Limited | 1800-267-0999 |
| 47 | Chaudhary Charan Singh Haryana Agricultural University (CCSHAU) | 1800-180-3001 |
| 48 | Chennai Metro Rail Limited (CMRL) | 1860-425-1515 |
| 49 | Chhattisgarh State Renewable Energy Development Agency (CREDA) | 1800-123-4591 |
| 50 | Chhattisgarh Tourism Board (CTB) | 1800-102-6415 |
| 51 | Chief Electoral Office, Himachal Pradesh | 1800-332-1950 |
| 52 | Chitkara University | 1800-267-1999 |
| 53 | Cholamandalam Investment and Finance Company Limited | 1800-200-4565 |
| 54 | Cholamandalam Investment and Finance Company Limited (CIFCO) | 1800-200-4565 |
| 55 | Cisco Systems India Private Limited | 1800-102-5553 |
| 56 | City Tiles Limited | 1800-123-3233 |
| 57 | CLAAS Agricultural Machinery Private Limited | 1800-425-25227 |
| 58 | CLAAS India Private Limited | 1800-425-25227 |
| 59 | Clarkes Hotel | 1800-112-030 |
| 60 | Cloudnine Hospital | 1860-500-9999 |
| 61 | CMC Limited | 1800-209-0106 |
| 62 | CMS Computer Institute | 1800-220-027 |
| 63 | CMS Technology Private Limited | 1800-209-0027 |
| 64 | Coca-Cola India Private Limited | 1800-208-2653 |
| 65 | Cochin Port Authority (CPA) | 1800-425-9966 |
| 66 | Coimbatore District Cooperative Milk Producer's Union Limited (CDCMPUL) | 1800-425-3300 |
| 67 | Coir Board | 1800-425-9091 |
| 68 | Coir Display & Information CentreCoir Board | 1800-425-9091 |
| 69 | Cole-Parmer India Private Limited | 1800-266-1244 |
| 70 | Colgate-Palmolive (India) Limited | 1800-225-559 |
| 71 | Comguard Infosol Private Limited | 1800-267-9980 |
| 72 | Commando Caterers Private Limited (CCPL) | 1800-137-1112 |
| 73 | Commercial Tax Department, Bihar | 1800-345-6102 |
| 74 | Commercial Tax Organisation (CTO), Odisha | 1800-345-6753 |
| 75 | Commercial Taxes Department (CTD), Rajasthan | 1800-180-6127, 1800-180-6102 |
| 76 | Computer Age Management Services Private Limited (CAMS) | 1800-200-2267, 1800-419-2267 |
| 77 | Computer Age Management Services Private Limited (CAMS) | 1800-419-2267 |
| 78 | Cona Industries Private Limited | 1800-123-4101 |
| 79 | Consortium of Medical, Engineering and Dental Colleges of Karnataka ( COMEDK) | 1800-103-6182 |
| 80 | Consumer Affairs, Food And Civil Supplies | 1800-425-00333 |
| 81 | Cooper Corporation Private Limited | 1800-120-004001 |
| 82 | Cosmo Electro Industries Private Limited | 1800-221-470 |
| 83 | CP Plus | 1800-103-0806, 1860-500-3344 |
| 84 | Credit Guarantee Fund Trust for Micro and Small Enterprise (CGTMSE) | 1800-222-659 |
| 85 | Cremica Food Industries Limited | 1800-180-2045 |
| 86 | Cremica Food Industries Limited | 1800-208-2254 |
| 87 | Croma | 1800-258-3636 |
| 88 | Cryovault Biotech India Private Limited | 1800-102-4026 |
| 89 | Cryoviva Biotech Private Limited | 1800-300-22796 |
| 90 | CSB Bank Limited | 1800-266-9090 |
| 91 | CT Institute of Higher Studies | 1800-137-2227 |
| 92 | CT University (CTU) | 1800-137-7777 |
| 93 | Cummins India Limited | 1800-210-2525 |
| 94 | Curo India Private Limited | 1800-102-2876 |
| 95 | Cyberoam Technologies Private Limited | 1800-301-00013 |
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