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Indian Long Range Identification &
Tracking National Data Centre
(LRIT - NDC)
Annual Report
2024
DIRECTORATE GENERAL OF SHIPPING
MINISTRY OF PORTS, SHIPPING & WATERWAYS
GOVERNMENT OF INDIATABLE OF CONTENTS
LRIT ACTIVITY
01 LRIT OVERVIEW 01
02 SHIP REGISTRATION
03
DETAILS
03 LRIT CENTER VISITS
OVERVIEW
05
04 SEARCH AND RESCUE
08
OPERATIONS
05 SARSURPIC REQUESTS OVERVIEW
10
-2024
06 CONTRIBUTION OF THE DG COMM
12
CENTRE IN 202401
LONG RANGE IDENTIFICATION
AND TRACKING (LRIT) -
LRIT facilitates the identification and tracking of
LRIT-registered own-flag vessels worldwide. It
OVERVIEW enables long-range identification and tracking
within 1000 nautical miles seaward from the
baseline of Coastal States, allowing them to view
Long Range Identification and Tracking (LRIT),
all flag vessels of LRIT Contracting Governments
conceptualized by MSC.81 in 2006, is a system
when their "LRIT Standing Orders" are activated.
with critical applications in maritime security,
The system applies to vessels of 300 Gross
safety, anti-piracy operations, environmental
Tonnage (GRT) and above that are actively
protection, and various operational functions for registered in the LRIT network. The integration of
Flag, Port, and Coastal State administrative AIS Satellite technologies further enhances the
entities. tracking capabilities of Coastal States, with LRIT
continuing to serve as an additional source of
tracking information. It complements existing
Safety:
classified and unclassified systems to enhance
LRIT strengthens the safety of navigation
by enabling authorities to continuously Maritime Domain Awareness.
monitor vessels, respond quickly to
emergencies, and support search and “LRIT – Empowering Safer,
rescue operations even in remote ocean
regions.
Smarter, and more Secure
Seas”
Security:
LRIT helps coastal and port authorities
The LRIT "SAR SURPIC" (Search & Rescue
detect and respond to unauthorized or
suspicious vessel movements, playing a Surface Picture) is a cost-free service that can
key role in preventing piracy, smuggling, only be raised by a nation's Coast Guard from
and maritime terrorism. anywhere in the world. It displays all LRIT flag
vessels within a defined circular or rectangular
area, helping SAR authorities direct available
Environmental: vessels for assistance. In contrast, the "Coastal
LRIT enables proactive monitoring of SURPIC Request" is a billable service that can
vessel behaviour to ensure compliance be initiated by a Coastal State of an LRIT
with environmental laws, helping to detect Contracting Government within its 1000 nautical
illegal discharges and protect sensitive
mile boundary.
marine zones.02
INDIA’S LRIT SERVICES UNDER THE TRILATERAL MARITIME
COOPERATION WITH SRI LANKA & MALDIVES
Overview
As part of a trilateral cooperation between
India, Sri Lanka, and the Maldives, India
provides comprehensive LRIT services free of
cost to Sri Lanka and the Maldives, enabling
them to meet international compliance
India’s NDC enables uninterrupted LRIT
requirements without the burden of
services through 24x7 operational support,
maintaining independent infrastructure. secure vessel tracking up to 1000 nautical
India’s National Data Centre (NDC) serves as miles, and regular data coordination with the
International Data Exchange. The Indian
both the Testing ASP and CSP, conducting
system provides a reliable interface for ship
Conformance Tests, issuing Conformance
registration, conformance testing,
Test Certificates (CTCs), and ensuring secure emergency tracking, and post-registration
assistance. Importantly, India extends these
data transmission. The Indian NDC’s software
services to partner nations like Sri Lanka
is designed to be scalable and is capable of
and Maldives at no cost, reinforcing its
serving as a Regional Data Centre (RDC), leadership in regional cooperation. With a
system capable of generating SAR SURPIC
offering LRIT services to additional countries
data, facilitating poll-to-ship actions, and
beyond the current cooperation. A dedicated
maintaining compliance history, India’s NDC
Graphical User Interface (GUI) with role- ensures that both national and regional
authorities are empowered with accurate,
based access has been provided to maritime
real-time maritime data. This trusted,
stakeholders such as shipping companies,
service-led model demonstrates India’s
naval forces, port authorities, and coast proactive stance in maritime security,
transparency, and collaboration.
guards, allowing them to independently
monitor vessel activity in real time. Beyond
Backed by scalable infrastructure and a team of
technical enablement, the Indian NDC offers
experienced personnel, the Indian NDC has
continuous operational support, handling ship
emerged as a trusted regional partner, offering
onboarding, de-registration, inspection
continuous support and streamlined LRIT services
readiness, real-time tracking, and providing
to neighbouring countries through a secure,
live assistance during maritime emergencies
efficient, and cooperative framework.By
or port state inspections. India’s National Data
supporting Sri Lanka and Maldives through real-
Centre plays a significant role in the regional time access, administrative assistance, and
implementation of LRIT, extending its technical expertise, India’s NDC has positioned
responsibilities beyond national boundaries to itself as a regional hub for LRIT services. It is not
support neighbouring maritime only ensuring regulatory adherence but also
promoting inclusive maritime security and
administrations, and positioning itself as a
cooperation in the Indian Ocean region.
reliable and collaborative RDC for the region.03
Ship Registration Details
During the period, India recorded 37 new registrations, indicating moderate activity in terms of onboarding or
adding new entities to the system. This suggests a continued engagement with the platform or process. Sri
Lanka had 1 registration, reflecting minimal but present activity.
Ships Registered
During the period, India recorded 37 new registrations,
indicating moderate activity in terms of onboarding or
REGISTERED
adding new entities to the system. This suggests a
continued engagement with the platform or process. Sri
Lanka had 1 registration, reflecting minimal but present
activity. On the other hand, Maldives reported zero new
registrations, pointing towards either no recent
operations or a stagnant phase in terms of new entries.
Ships Deregistered
The deregistration activity was observed only in India,
with 02 entities removed from the system. This may
indicate a data cleansing effort, deactivation of inactive
users, or regulatory-driven removals. Maldives and Sri
Lanka did not report any deregistrations, which could
either mean data stability in those regions or simply no
changes recorded in this category.
Ships Re-registered
A significant highlight is India’s remarkably high number
of re-registrations, totalling 103. This may reflect a large-
scale reinstatement campaign, reactivation of previously
deregistered entities, or policy-driven updates. Sri Lanka
showed 01 re-registration, which, though small,
indicates some user engagement or recovery. Maldives,
once again, reported no re-registration activity, staying
consistent with its inactivity across other metrics.04
SHIP INACTIVATION
As of 31st December 2024, a total of 92 vessels were marked
as inactive in the LRIT system. During the year, 2 ships from
India were newly made inactive, while no vessels were marked
inactive from Sri Lanka or the Maldives. Inactivation is carried
out to avoid false “Not Responding Normally” alerts and to
reduce unnecessary satellite communication costs. Common
reasons include ships being converted to River-Sea vessels,
sending excessive position reports, or undergoing major repairs
or long lay-ups. This process ensures better tracking accuracy
and improves overall system efficiency.
VESSELS DELETED DUE TO LACK OF
OTP’S ISSUED
PRIOR NOTICE
One-Time Polling (OTP) is a
manual request mechanism
within the LRIT system that
allows authorities to retrieve
the immediate position of a
ship outside of its regular
reporting schedule. It is
commonly used during
inspections, maritime emergencies, or for In 2024, a total of four vessels were deleted
monitoring vessels of interest. In the year 2024, a from the LRIT system through command-line
total of 151 OTPs were sent to ships from India, operations (DNID/Vessel Delete) due to the
absence of any prior notice regarding changes
supporting real-time operational decisions and
in their operational status. These deletions
enhancing maritime situational awareness. This
typically occur when vessels are reclassified
capability plays a crucial role in reinforcing
into non-ocean-going categories such as River-
maritime security, regulatory compliance, and
Sea, and the respective shipping companies fail
readiness during unforeseen events.
to inform the authorities in advance. To maintain
process transparency, the LRIT team issues a
formal notice and proceeds with deletion only
after allowing a 48-hour response window. This
ERRATIC REPORTING SHIPS
ensures that stakeholders have sufficient time to
In 2024, a total of 800 vessels were provide clarification or updates. If no response is
received within this period, LRIT-specific
identified for close monitoring due to
identifiers such as DNID and Member Numbers
variations in LRIT data transmission.
are removed from the shipborne equipment,
These cases were primarily linked effectively disconnecting the vessel from the
to operational adjustments or LRIT system. Should the vessel later resume
ocean-going status, these details must be
onboard system configurations.
manually restored. This controlled approach
The tracking team ensured data continuity and maintained
ensures the integrity and accuracy of the LRIT
oversight to support accurate vessel monitoring across all database by retaining only active and compliant
flagged instances. vessels.05
LRIT CENTER VISITS- OVERVIEW
WORLD MARITIME UNIVERSITY STUDENTS VISITES
The delegates set out on a comprehensive tour of A key highlight of the visit was the Indian
India’s advanced maritime monitoring and LRIT National Data Centre (NDC), which
coordination infrastructure, with a special focus acts as the country’s central repository and
control point for all LRIT data related to
on the Long-Range Identification and Tracking
Indian-flagged vessels. The delegates
(LRIT) Centre. This visit offered an in-depth
gained insight into how the NDC processes
exploration of how India leverages technology
incoming data, ensures its accuracy, and
and international collaboration to ensure maritime
facilitates secure communication with
safety, security, and regulatory compliance. From
international LRIT data centres under the
real-time vessel tracking systems to robust data
framework established by the International
exchange protocols, the tour provided a firsthand
Maritime Organization (IMO). The
view of the operational backbone that supports infrastructure supports India’s obligations as
maritime domain awareness far beyond national a flag state, contributing actively to the
waters. global maritime safety architecture.
The visit to the LRIT Centre offered more than just a technical overview; it highlighted the depth of India’s
commitment to maritime safety, its alignment with international conventions, and its forward-looking
approach to maritime surveillance. Through cutting-edge systems, dedicated personnel, and a culture of
collaboration, the Centre stands as a testament to India’s growing role in ensuring safe and secure seas
across the region and beyond.06
FRIENDLY FOREIGN COUNTRIES VISIT - SEARCH & RESCUE WORKSHOP
The Indian Long-Range Identification and
Tracking (LRIT) Centre continues to play a vital
role in strengthening maritime safety and
situational awareness, particularly in the domain
of Search and Rescue (SAR). On 20th January
2024, a high-level delegation comprising
representatives from Sri Lanka, Maldives,
Bangladesh, Mauritius, and other friendly
maritime nations visited the LRIT Centre as part
of a dedicated SAR workshop aimed at
enhancing regional preparedness and
coordination. The visit offered delegates a first-
hand understanding of how India leverages LRIT
technology to support effective SAR operations
across its maritime zones and beyond.
The visit included a detailed walkthrough of the National Data Centre, showcasing real-time
vessel tracking and global data exchange mechanisms.
The delegation was taken through a structured programme that included focused briefings, live
demonstrations, and walkthroughs of key operational procedures at the LRIT National Data Centre.
Special emphasis was placed on how LRIT supports real-time vessel tracking, detection of anomalies,
and timely data exchange with international LRIT data centres—all of which are critical components in
initiating and managing SAR responses. The sessions highlighted India’s alignment with International
Maritime Organization (IMO) standards and its ability to quickly mobilize maritime resources in support
of life-saving efforts at sea.
This engagement reaffirmed India’s strong
commitment to regional cooperation in maritime
safety and its proactive approach to SAR readiness.
The LRIT Centre served not only as a showcase of
technological capability but also as a platform for
knowledge-sharing and collaborative planning.
Through technical dialogue and scenario-based
interactions, the workshop strengthened mutual
understanding among neighbouring nations, helping
to align their SAR frameworks with India’s vision for
swift, coordinated, and transparent maritime
emergency response. The visit on 20th January
2024 stood out as a key moment in enhancing
collective SAR capability in the region.07
NAVY PERSONNEL VISITS
08.08.2024
In 2024, the Long-Range Identification and Tracking (LRIT)
Centre hosted multiple visits by Indian Naval personnel,
providing them with an operational understanding of the LRIT
system and its role in maritime surveillance and vessel
monitoring. These visits took place on 08 August, 09 September,
and 13 September, and were aimed at familiarizing naval officers
and chief officers—particularly those preparing for deployment—
with the system’s real-time tracking capabilities and data flow
mechanisms. The sessions included comprehensive briefings
and live demonstrations of how positional data from Indian-
flagged vessels is received, processed, and monitored through
the Indian LRIT National Data Centre (NDC), which facilitates
secure information exchange with global LRIT networks in
alignment with International Maritime Organization (IMO)
regulations.
09.09.2024 13.09.2024
Officers were shown how the system supports various operational needs, including compliance tracking, route deviation alerts,
historical voyage analysis, and coordination during Search and Rescue (SAR) scenarios. The visit also highlighted the integration
of LRIT data with broader maritime domain awareness tools and its relevance in defence and enforcement contexts. These
engagements contributed to strengthening inter-agency alignment and operational preparedness, while reinforcing the
importance of LRIT as a critical component of India’s maritime safety and surveillance framework.08
SEARCH AND RESCUE OPERATIONS
OVERVIEW
Search and Rescue (SAR) operations in India are led
by the Indian Coast Guard, which acts as the national
maritime SAR authority under the framework of the
International Convention on Maritime Search and
Rescue, 1979. India has made significant
contributions to regional SAR efforts through its three
Maritime Rescue Coordination Centres (MRCCs) in
Mumbai, Chennai, and Port Blair, supported by a
network of Maritime Rescue Sub-Centres (MRSCs).
As part of its advanced SAR capabilities, India actively
utilizes Long-Range Identification and Tracking (LRIT)
to monitor vessel movements within and around its
Search and Rescue Region (ISRR). LRIT data helps
the Coast Guard in identifying ships near distress
locations, even beyond the range of coastal radar
systems, enabling timely coordination of assistance.
India also serves as the NAVAREA VIII coordinator
under the IMO’s Worldwide Navigational Warning
Service, broadcasting SAR alerts and maritime safety
information across a wide expanse of the Indian
Ocean. By integrating LRIT with systems like GMDSS
and AIS, India ensures accurate and efficient SAR
response. The combined use of LRIT and NAVAREA
services has further strengthened India’s role in cross-
border maritime rescue efforts, reaffirming its
commitment to the safety of life at sea in the region.
LRIT IN SAR AND MARITIME INCIDENT
The Long-Range Identification and Tracking (LRIT) Beyond SAR, LRIT aids in investigating maritime
system enables rescue coordinators to access a incidents like hit-and-run cases where small vessels
detailed list or graphical display of vessels—both are damaged or lives are lost. Authorities can use
domestic and foreign flags—present in the vicinity of a LRIT data to identify ships that were nearby at the
time. Monitoring foreign vessels requires activating
ship in distress. This visibility ensures that assistance
the Flag State’s Standing Order. In urgent cases, a
can be dispatched swiftly and also places a clear
SAR SURPIC can be requested to locate nearby
responsibility on nearby vessels to respond, as captains
ships, followed by direct polling to get their latest
must provide a valid justification for not assisting a
positions. This helps establish vessel movement
vessel in need. In Search and Rescue (SAR) operations,
history and supports accountability. The timely use of
a SAR SURPIC (Search and Rescue Surface Picture)
LRIT data can significantly improve the chances of
generated using LRIT data offers a static view based on
identifying those involved. It also reinforces maritime
the most recent periodic position reports of vessels in
safety and regulatory enforcement efforts.
the area.09
USE OF LRIT IN SAR
A Long-Range Identification and Tracking (LRIT) SAR SURPIC (Search and Rescue Situation Picture) is
raised when a Search and Rescue (SAR) authority, in India it is the Indian Coast Guard, needs to locate
vessels in a specific geographical area during an emergency. This is done by requesting the most recent
LRIT data from all relevant LRIT Data Centers. The primary purpose of a LRIT SAR SURPIC is to assist SAR
services in locating vessels that may be able to provide assistance in a search and rescue operation or to
locate a vessel in distress.
1.Initiation 2.Data Request:
This message requests the most recent LRIT data
A LRIT SAR SURPIC is initiated by a SAR service
from all LRIT Data Centres, focusing on a specific
like a Maritime Rescue Coordination Center
geographical area defined by the SAR service, mostly
(MRCC) through a SAR SURPIC request sent via a circular area with the incident as the centre with a
selected radius or a rectangular area with offsets from
the International LRIT Data Exchange.
its south-westerly point.
3. Information Provided 4.SAR Response
The SAR service receives the most recent LRIT Based on the received information, the SAR service
data for vessels within the specified area, (here it is the Indian Coast Guard) can identify
including their identity, position, and the time of potentially helpful vessels and give a SAR poll to them
that position. directly to determine their current position and
suitability for assisting in the rescue.
Frequency of LRIT Transmission
While LRIT data is normally transmitted every 6 hours, the frequency can be increased to
every 15 minutes during emergency situations, including SAR operations. Positions for a
SAR SURPIC can be requested from a minimum of one position to the last 4 positions.
More than one position helps in helps in determining the approximate direction vector of
the vessel.10
SARSURPIC REQUEST OVERVIEW-2024
A SURPIC (Surface Picture) request is initiated through LRIT to support Search and Rescue
(SAR) operations and enhance maritime situational awareness. These requests may be raised in
response to suspicious activities, vessel casualties, missing vessels, ongoing search operations,
or for system testing purposes. By providing a real-time snapshot of LRIT-registered vessels
within a defined area, SURPIC enables authorities to assess the situation and coordinate an
effective response. In 2024, four SURPIC requests were generated under various operational
scenarios, demonstrating the system’s continued utility in supporting maritime safety and security
efforts.
1.Surpic Raised on 02.01.2024
2.Surpic Raised on 07.02.202411
3.SARSURPIC RAISED ON 25th & 26thFEB 2024 for missing fishing boat
The LRIT SURPIC request was raised on the 25th and 26th of February 2024 for a missing fishing boat.
LRIT coordinated and cooperated with the Coast Guard to track nearby LRIT-registered vessels in the
suspected area. This helped provide a clear view of vessel movement to support the search operation.
Both circular and rectangular SURPIC formats may have been used to cover a wider area. The
information assisted the authorities in guiding available resources for the search and rescue efforts.
2.Surpic Raised on 20.04.2024
*LRIT SAR SURPIC circular raised 20-04-2022, 07:52:34UTC, centre 06N 078E, last 4 LRIT positions
requested12
CONTRIBUTION OF THE DG COMM CENTRE
IN 2024
The DGCOMM Centre, through its LRIT operations, continues to play a pivotal role in strengthening maritime
safety, security, and coordination mechanisms. Its activities span across critical areas such as casualty
monitoring, ship security alert verification, incident analysis, and proactive response to adverse weather
conditions. These accomplishments reflect the Centre’s commitment to ensuring operational readiness, inter-
agency coordination, and support to national and regional maritime frameworks. The LRIT platform remains
an integral part of India’s broader maritime surveillance and emergency response ecosystem.
Marine Casualty Handling
Handled a total of 186 marine casualties through the online reporting system, ensuring timely
coordination with concerned stakeholders.
SSAS Testing Operations
Successfully conducted 816 SSAS (Ship Security Alert System) tests to verify alert transmission and
maintain security compliance.
Hit & Run Incident Analysis
Analyzed and coordinated 11 hit-and-run cases involving merchant vessels and Indian fishing boats to
support enforcement actions.
CYCLONE & SEVERE WEATHER EVENT MONITORING
Cyclone Name Dates Peak Intensity
Remal May 24 – May 28, 2024 Severe Cyclonic Storm (110 km/h), BOB
Asna Aug 25 – Sep 2, 2024 Tropical Cyclonic Storm, Arabian Sea
Dana Oct 24 – Oct 25, 2024 Severe Cyclonic Storm, Bay of Bengal
Fengal Nov 25 – Nov 27, 2024 Deep Depression, Bay of BengalEND OF REPORT