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Deepstambh

About the data

Every source with the day it was read, how the lists were joined, and what did not join. Published 7 Oct 2026. Lights change by the year, not the day, so nothing here runs on a timer.

Sources

five, each read on the day shown

List of Lights, Pub. 112

US National Geospatial-Intelligence Agency

every light: position, lamp height, listed range, rhythm, the tower's description, remarks

Lighthouses developed for visitors

Ministry of Ports, Shipping and Waterways, reply in the Rajya Sabha

the 75 lighthouses, by name and state

Each lighthouse's own page

Directorate General of Lighthouses and Lightships

73 pages: a map point, a history paragraph, amenities, the booking link, hours for a few

Wikidata and OpenStreetMap

their contributors

a year for some towers; positions for the few lights the List does not carry

Mapterhorn elevation

open elevation tiles

the ground: for each light's reach, the relief, and the light that falls on it

How the lists were joined

one light, one place number, never reused

Lights

397

390 from the List; 7 it does not carry, placed from OpenStreetMap, Wikidata or the directorate's page

Lighthouses

183

a tower the List describes that shows 15 nautical miles or more, or a name on the ministry's or the directorate's lists

The ministry's 75

73 placed

each name joined to one light

Directorate pages

67 of 73

joined to a light; 35 carry a sentence that dates the tower

Not placed: Kuthenkuli Lighthouse

The List of Lights has no light near Kuthenkuli, and the directorate's portal has no page for it.

Not placed: Tajpur Lighthouse

The List of Lights has no light at Tajpur, and the map point on its portal page is 35 km from Tajpur, so it was not used.

The portal's list of names

168 of 206

names on the directorate's portal list joined to a light. The list also carries stations that show no light.

Two dates for one tower

7

lights where the directorate's page and Wikidata or OpenStreetMap give different years. The card shows both. A year may be the first light shown at the place, not the tower standing now; sentences about a lamp, a lens or other equipment are not taken as the tower's date.

What each light has

of 397; a field the source does not give stays empty

A position397
Lamp height above the sea355
A rhythm378
Listed range346
Reach over real ground332
Tower height248
Every length of light and dark156
A year on record90
Visiting hours in print4

Not shown

named here so no page implies it

Staffed or unstaffed

The directorate's pages do not say.

Heritage status

No source read here lists it light by light.

Candelas

The List gives a range, not an intensity. How strong a light is on the ground is our rule; the Method page draws it.

Lights since 2023

Our copy of the List ends at notice 34 of 2023 for these coasts.

Hours for most

Printed on the portal for 4 lighthouses only; the card links the page for the rest.

Not for navigation

A picture of the lights, not a chart. Mariners use the current charts and notices.

How to cite

cite as "Maplore Deepstambh, maplore.in/deepstambh, data as of 7 Oct 2026"

The List of Lights is public domain; OpenStreetMap data is © OpenStreetMap contributors, ODbL; the ministry's and the directorate's pages are Government of India publications, quoted with their source.