The Chief Hydrographer is the Head of the Wing and is headquarter is at Thiruvananthapuram. There are two range offices each at Beypore and Kollam to lookafter the survey work of Northern and Southern regions of the state respectively and an additional unit at Neendakara. The range offices are headed by Marine Surveyors and the additional unit by an Assistant Marine Surveyor.

List and Address of Head Office and Offices of this Wing:
 

	Chief Hydrographer (Head of this wing), Hydrographic Survey Wing, Sasthamangalam, Thiruvananthapuram-10, Kerala, Telephone: 0471 2725123 (Office) 9446539123 (Mobile) E-mail-chhsw@dataone.in
	Deputy Hydrographer Hydrographic Survey Wing Sasthamangalam Thiruvananthapuram-10 Kerala Telephone – 04712725123 (Office)
	Marine Surveyor, Hydrographic Survey Wing (Northern Range), Beypore P.O, Kozhikode-695015, Telephone No: 0495 2414069
	Marine Surveyor, Hydrographic Survey Wing (Southern Range)Asramom, Kollam-691002, Telephone No: 0474 2748863.
	Assistant Marine Surveyor Hydrographic Survey Wing Neendakara. Kollam Telephone No. 04762684913