India's Southernmost Sentinel: Why Indira Point Still Matters
A tsunami-tilted lighthouse on Great Nicobar marks not just India's southern tip but a strategic vantage over one of the world's busiest sea lanes
What happened
Locational geography earns easy marks when a candidate can tie a dot on the map to a strategic idea. Indira Point is that dot: India's southernmost point, physically altered by the 2004 tsunami, and perched beside the sea lanes that carry much of the world's trade toward the Malacca Strait. Its story links physical geography, disaster science and maritime strategy in one place.
Indira Point: A Lighthouse Through the Tsunami
Indira Point Lighthouse — Timeline
Source: Directorate General of Lighthouses and Lightships
Indira Point (formerly Pygmalion Point, and briefly Parsons Point) is the southernmost point of India, located on Great Nicobar Island in the Andaman and Nicobar archipelago; it is named after former Prime Minister Indira Gandhi.
●Note the distinction: Indira Point is the southernmost point of Indian territory, while Kanyakumari is the southernmost point of mainland India.
●The Andaman and Nicobar Islands are separated from each other by the Ten Degree Channel, and lie near the Andaman Sea and the approaches to the Malacca Strait — a critical maritime chokepoint.
●The lighthouse was commissioned on 30 April 1972; the 2004 Sumatra-Andaman earthquake (magnitude ~9.1) and tsunami subsided Indira Point by about 2.04 m and tilted the lighthouse ~3.86°, with a rebuilt structure operational since 2018.
●India's only tri-services command, the Andaman and Nicobar Command (ANC), is headquartered at Port Blair, underscoring the islands' strategic weight; the Great Nicobar development project (including a proposed transshipment port) is the current infrastructure focus, alongside ecological concerns for the island's rainforests and tribes.
Indira Point fuses physical geography (a tsunami-altered southern tip) with strategic geography (a perch over the Malacca-bound sea lanes) — the reason a remote lighthouse carries national significance.
◎ In Simple Words
At the very bottom tip of India, on a remote island called Great Nicobar, there is a tall lighthouse that guides ships. This is India's southernmost point, named Indira Point. In 2004, a huge underwater earthquake caused a giant wave (a tsunami) that made the land sink by about two metres and left the lighthouse leaning to one side. It has since been repaired. The place matters a lot because it sits right next to one of the busiest ship highways in the world, and it is very close to Indonesia — so it is important for both trade and India's security in the region.
Factual Pointers
Practice · 2 questions
With reference to Indira Point, consider the following statements:
1. It is the southernmost point of the Indian mainland.
2. It is located on Great Nicobar Island.
3. It lies close to the approaches to the Malacca Strait.
Which of the statements given above is/are correct?
The Andaman Islands are separated from the Nicobar Islands by which of the following?
Mains Practice Questions
"India's island territories are strategic assets, not peripheral outposts." Discuss with reference to the geographical and strategic significance of the Andaman and Nicobar Islands. (250 words, GS1)
The Great Nicobar development project embodies a tension between strategic-economic ambition and ecological-tribal protection. Critically examine. (250 words, GS3)
Explain how the tectonic setting of the Andaman and Nicobar Islands makes disaster preparedness central to their development. (150 words, GS1)
MCQ Practice
3 questions on this article
With trap analysis, approach guide, and UPSC angle
Frequently Asked
· People also askWhere is Indira Point?
Indira Point is the southernmost point of Indian territory, on Great Nicobar Island in the Andaman and Nicobar Islands. It is distinct from Kanyakumari, which is the southernmost point of the Indian mainland, and is named after former PM Indira Gandhi.
PrelimsThe Andaman Islands are separated from the Nicobar Islands by the Ten Degree Channel. Indira Point lies only about 150 km from Indonesia.
SOURCE Directorate General of Lighthouses and Lightships
Why is the Indira Point lighthouse tilted?
The 2004 Indian Ocean earthquake and tsunami permanently subsided the site by about 2.04 metres and tilted the lighthouse — commissioned in 1972 — by about 3.86°. A rebuilt lighthouse has been operational since 2018.
GS1 · GS3The magnitude ~9.1 Sumatra-Andaman earthquake occurred along the Sunda subduction zone; the resulting land-level changes across the Nicobar Islands make disaster-resilient design essential to any development there.
SOURCE Directorate General of Lighthouses and Lightships
Why is Indira Point strategically important?
It sits near the approaches to the Malacca Strait along the Singapore-Colombo shipping corridor — one of the world's busiest sea lanes — and lies about 150 km from Indonesia, giving the Andaman and Nicobar Islands major strategic weight.
GS2 · GS3The islands host India's only tri-services command, the Andaman and Nicobar Command, at Port Blair — a forward base for maritime domain awareness near a critical chokepoint.
SOURCE Directorate General of Lighthouses and Lightships
What separates the Andaman and Nicobar Islands?
The Ten Degree Channel separates the Andaman Islands to the north from the Nicobar Islands to the south. This is a frequently tested locational fact.
PrelimsDo not confuse it with the Nine Degree Channel (in Lakshadweep), Duncan Passage (within the Andaman group) or the Coco Channel (between the Andamans and Myanmar's Coco Islands).
SOURCE Survey of India
What is the Great Nicobar project debate?
The Great Nicobar development project — a transshipment port and associated infrastructure — promises strategic and economic gains but threatens pristine rainforests, endemic species and vulnerable tribal communities: a classic environment-versus-strategy trade-off.
GS3Because the islands sit on an active subduction zone and host particularly vulnerable tribal groups, any development needs rigorous environmental impact assessment, disaster-resilient design and genuine consultation.
SOURCE Ministry of Environment, Forest and Climate Change