Longest Coastline in India: State-wise List updated(2026)
Last updated: 17th, June 2026
Gujarat has the longest coastline among Indian states. This is according to the Terms of Reference (ToR) approved by the National Security Council Secretariat (NSCS), New Delhi, on August 10, 2023. However, when including island territories, the Andaman & Nicobar Islands have the longest coastline in India. Their coastline measures 3,083.50 km.
The total length of India’s coastline has been officially re-assessed as 11,098.81 km by the Naval Hydrographic Office (NHO) in collaboration with the Survey of India, based on the latest ToR guidelines. old coastline was 7516.6 KM before 2023. This includes the coastlines of all coastal states and union territories, covering both mainland and island regions.
📌 India Coastline Quick Facts (2026)
- Total Coastline of India: 11,098.81 km
- Longest Coastline (State): Gujarat – 2,340.62 km
- Longest Coastline (Including UTs): Andaman & Nicobar Islands – 3,083.50 km
- Number of Coastal States: 9
- Number of Coastal UTs: 4
- Old Coastline Length: 7,516.6 km
- Increase After 2023 Revision: +47.6%
What is coastline?
A coastline is defined as the line between Land and Sea. In case of India the line between Indian land and Indian Ocean is known as coastline of India. Coastlines are dynamic and constantly changing due to geological and oceanographic processes, including erosion, accretion, and sea-level changes.
India’s coastline touches nine states and four union territories:
- Union Territories: Puducherry, Andaman & Nicobar Islands, Lakshadweep, Dadra & Nagar Haveli and Daman & Diu
- States: Gujarat, Maharashtra, Goa, Karnataka, Kerala, Tamil Nadu, Andhra Pradesh, Odisha, West Bengal
Read also: Largest state in India by size: Full List
Old vs New Coastline Length of India: Explained
The earlier officially recorded coastline length of India was 7,516.6 km, based on a survey conducted by the Ministry of Home Affairs in the 1970s. This measurement was derived from the cartographic data available at that time, likely calculated using maps at a scale of 1:4,500,000 or smaller.
The re-verified coastline length of 11,098.81 km was finalized by the Naval Hydrographic Office (NHO) in coordination with the Survey of India. This new measurement is more precise. It uses modern geospatial tools and data at a finer scale of 1:250,000. The increase in length is due to differences in scale, methodology, and technology. The updated data is more accurate and standardized. It supports better national planning, maritime security, and environmental management.
Read also: Total district In India: state wise full list
Top 10 longest coastline in India
| Rank | State / Union Territory | Coastline Length (km) |
|---|---|---|
| 1 | Andaman & Nicobar Islands | 3,083.50 |
| 2 | Gujarat | 2,340.62 |
| 3 | Tamil Nadu | 1,068.69 |
| 4 | Andhra Pradesh | 1,053.07 |
| 5 | Maharashtra | 877.97 |
| 6 | West Bengal | 721.02 |
| 7 | Kerala | 600.15 |
| 8 | Odisha | 574.71 |
| 9 | Karnataka | 343.30 |
| 10 | Goa | 193.95 |
Source: National Hydrographic Office (NHO), Survey of India and National Security Council Secretariat (NSCS).
Read also: Brain Drain: How many People Left India from 1960 to 2025
Top Coastal states of India before 2023
| State | Approx. Coastline (km) |
|---|---|
| Gujarat | 1,214.7 |
| Andhra Pradesh | 973.7 |
| Tamil Nadu | 906.9 |
| Maharashtra | 652.6 |
| Kerala | 569.7 |
| Odisha | 476.4 |
| Karnataka | 280 |
| West Bengal | 157.5 |
| Goa | 101 |
| Andaman & Nicobar Islands | 1,962 |
| Lakshadweep Islands | 132 |
| Daman & Diu | 42.5 |
| Puducherry | 47.6 |
After 2023 update by Naval Hydrographic Office (NHO) in coordination with the Survey of India. the Indian coastline has Increased from 7516 km to 11098 Km which is about a 47.6% increase in the measured length over the past five decades.
Read also: Largest Country In the World by Area: Full list
Updated coastline of India after 2023
| Sl. No. | State/Union Territory | Coastline (km) |
|---|---|---|
| 1 | Gujarat | 2,340.62 |
| 2 | Maharashtra | 877.97 |
| 3 | Goa | 193.95 |
| 4 | Karnataka | 343.30 |
| 5 | Kerala | 600.15 |
| 6 | Tamil Nadu | 1,068.69 |
| 7 | Andhra Pradesh | 1,053.07 |
| 8 | Odisha | 574.71 |
| 9 | West Bengal | 721.02 |
| 10 | Daman & Diu | 54.38 |
| 11 | Puducherry (Pondicherry) | 42.65 |
| 12 | Lakshadweep Islands | 144.80 |
| 13 | Andaman & Nicobar Islands | 3,083.50 |
| Total | 11,098.81 |
Why coastal states are important?
Coastal line is very important for a country and its development for trade and national security.
Ports
- 13 major ports, 200+ minor ports
- 90% of India’s trade by volume moves via sea
Tourism
- Goa
- Kerala
- Andman
- Odisha
National security
- Indian Navy and Coast Guard bases in Mumbai and Vizag etc.
- Strategic location in Indian Ocean.
Other
- Fishing
- Energy
- water resource
Reference: Survey Of India