India Toll-Free Nos. Directory (Letter D)
| D'damas | 1800-22-5455 |
| D-Link | 1800-22-2002 |
| Data One Broadband | 1800-424-1800 |
| Datamatics Finanacial Services | 1800-22-8666 |
| Dax Networks | 1-800-4255-329 (DAX) |
| DBS Cholamandalam Asset Management | 1-800-209-7575 |
| Deccan Charters | 1800-103-1034 |
| Delhi Commission for Women (DCW) | 1800-11-9292 |
| Delhi Police Recruitment | 1800-102-0898 |
| Delhi VAT Helpline | 1800-11-0066 |
| Dell | 1800-425-8107, 1800-425-4004, 1800-44-4026 |
| Dell - Telephone Technical support | 1800-425-8045 |
| Delta Airlines | 1800-22-5200 |
| Dena Bank | 1800-22-5740 |
| Dena Bank - Card Loss | 1800-22-5086 |
| Deutsche Postbank Home Finance Limited | 1800-103-4446 |
| Development Credit Bank | 1800-22-0545, 1800-22-5769 |
| Development Credit Bank (DCB) | 1800-22-5769 |
| Dewan Worldwide Holidays | 1800-11-7888 |
| Dhanlakshmi Bank | 1800-425-1747 |
| DHFL - Dewan Housing Finance Corporation Limited | 1800-22-3435 |
| DHL - 24X7 Helpline (India) | 1800-11-1345 |
| Digi Telly | 1800-419-2020 |
| Digital TV [ Airtel ] | 1800-102-8080 |
| Disc Technology Services | 1-800-425-6669 |
| Dish TV | 1800-103-8585 |
| Divy Power | 1800-233-3344 |
| Domino's Pizza | 1800-11-1123 |
| Dr. Batra's Super Speciality Homeopathy | 1800-22-6767 |
| Drinko | 1800-209-4030 |
| DRS Transport (P) Ltd | 1800-11-4321 |
| DSP BlackRock | 1800-345-4499 |
| DSP Merrill Lynch | 1800-345-4499 |
