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Indian Notices to Mariners
National Hydrographic Office
"Har Kaam Desh Ke Nam "
Welcome to INHD
Indian Naval Hydrographic Department
The Indian Naval Hydrographic Department (INHD) functions under the Chief Hydrographer to the Government of India and serves as the nodal agency for hydrographic surveys and nautical charting in India. In addition, the department conducts defence hydrographic survey critical to naval operations, submarine navigation and maritime domain awareness. INHD ensures safe navigation and international compliance through precise hydrographic data and modern survey practices.
What We Do
Delivering excellence in hydrographic surveying, nautical charting, maritime safety, and capacity building with global standards.
Specialized Hydrographic Services
Delivering precision-grade hydrographic services trusted by navies and maritime agencies worldwide.
Training in Hydrography
The Indian Naval Hydrographic Department conducts courses for Hydrographic officers, sailors, technicians and civilians, both from India and abroad. The Long and Basic Hydrographic courses conducted by the National Institute of Hydrography, Goa have been recognised with Cat ‘A’ and ‘B’ certification in accordance with S-5A, First Edition, and version 1.0.2 – Jun 18 of the FIH/IHO/ICA International Board on standards of Competence for Hydrographers and Nautical Cartographers, in 2020.
Hydrographic Surveying
The Indian Naval Hydrographic Department conducts courses for Hydrographic officers, sailors, technicians and civilians, both from India and abroad. The Long and Basic Hydrographic courses conducted by the National Institute of Hydrography, Goa have been recognised with Cat ‘A’ and ‘B’ certification in accordance with S-5A, First Edition, and version 1.0.2 – Jun 18 of the FIH/IHO/ICA International Board on standards of Competence for Hydrographers and Nautical Cartographers, in 2020.
International Co-op
INHD actively supports friendly foreign nations through hydrographic training programmes, technical collaboration and MoUs — in alignment with the Prime Minister's vision of MAHASAGAR.
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100 Years of Sharing Hydrographic Knowledge & Research
The International Hydrographic Review (IHR) is an international scientific journal publishing cutting-edge research in hydrography and nautical science.
Read MoreMapping Remote Locations with Satellites, Lasers & Acoustics
Augmenting traditional charting methods with cutting-edge satellite, laser and acoustic technologies for unparalleled coastal precision worldwide.
Read MoreMoU Partnerships with Signatory Nations
Formal MoUs enabling joint surveys, data exchange and capacity building with signatory countries across maritime boundaries.
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India WINS
Nautical Publications
Online Catalogue
This catalogue provides a comprehensive and up-to-date reference of INHO paper charts and Electronics navigational charts (ENC).
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Chart Agents
National Hydrographic Office has a network of chart agents for Sale of paper charts and publications click here to see there details.
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Indian Notices
to Mariners
Access all Indian Notices to Mariners individually or edition-wise. Four interactive filters for easy navigation of chart corrections in downloadable PDF format.
Contact Us
Reach us for any communications regarding Maritime Safety and publications published by INHD.