Hyrographer is the Head of the Hydrographic department within the MMB. Various hydrographic studies are carried out under his supervision.

These studies help establish need for dredging in the identified areas. He undertakes pre and post Hydrographic Surveys for dredging requirements and has a data bank of over 1150 bathymetric charts, which are made available to the users on payment.

He also undertakes surveys related to navigational safety and port development, provides bathymetric data for all potential sites for planning and execution of various projects, and undertakes the work of publication of Tides every year.

The Hydrographic Department has three full-fledged survey parties which are equipped with latest hydrographic equipment like Differential Global Positioning System (DGPS), dual frequency echo sounders, current meters, automatic tide gauge, digital level & Hypack Hydrographic Software.