Bay of Bengal
Northeastern part of the Indian Ocean, rich in history and biodiversity.
The Bay of Bengal forms the northeastern part of the Indian Ocean, located between the Indian subcontinent and the Indochinese peninsula, south of the Bengal region.
- bordering_countries
- India, Bangladesh, Myanmar, Sri Lanka, Indonesia
- major_rivers
- Ganges, Brahmaputra, Irrawaddy, Godavari, Krishna, Mahanadi, Kaveri
- notable_ecosystem
- Sundarbans, the largest mangrove forest in the world
- historical_names
- Mahodadhi, Sinus Gangeticus, Kalinga Sagar, Chola Sea
Lore & Background
The Bay of Bengal was historically known by several names reflecting the maritime kingdoms that bordered it, including Kalinga Sagar from the ancient kingdom of Kalinga and Vanga Sea from ancient Tamil literature. The Kushanas invaded northern India extending to the bay in the 1st century AD, and Chandragupta Maurya extended the Maurya Dynasty across northern India to the bay. In the 16th century, the Portuguese built trading posts at Chittagong and Satgaon.
Reader's Guide
The Bay of Bengal holds significant economic importance as a historical trade route, with early ventures by the British East India Company and French East India Company establishing trading centers along its shores. The BIMSTEC initiative supports free trade among Bangladesh, Bhutan, India, Myanmar, Nepal, Sri Lanka, and Thailand. The bay also contains numerous historic sites, including the Cellular Jail built in 1896 on Ross Island, the Sun Temple at Konark, and the Shore Temple at Mahabalipuram.
Did You Know?
- The Bay of Bengal is home to the Sundarbans, the largest mangrove forest in the world.
- The Cellular Jail on Ross Island was built in 1896 as a British penal colony.
- The bay was historically known as Sinus Gangeticus by the Romans and Kalinga Sagar by the kingdom of Kalinga.
Frequently Asked Questions
What is the Bay of Bengal?
It is the northeastern arm of the Indian Ocean, sitting between the Indian subcontinent and the Indochinese peninsula. It stretches across roughly 2.6 million square kilometers and touches the coastlines of India, Bangladesh, Myanmar, Sri Lanka, and Indonesia.
Which major rivers empty into the Bay of Bengal?
Several great river systems discharge into it, including the Ganges, Brahmaputra, and Irrawaddy, along with the Godavari, Krishna, Mahanadi, and Kaveri. These rivers carry enormous volumes of freshwater and sediment into the bay each year.
What makes the Bay of Bengal ecologically significant?
It is home to the Sundarbans, the world's largest mangrove forest, which spans the delta region where the Ganges and Brahmaputra meet the sea. This ecosystem supports a rich web of wildlife and shields coastal communities from storm surges.
What historical names has the Bay of Bengal carried?
Throughout different eras and cultures it has been called Mahodadhi, Sinus Gangeticus, Kalinga Sagar, and the Chola Sea. These names reflect the many civilizations and seafaring traditions that interacted with its waters over the centuries.
Why is the Bay of Bengal considered so important in the region?
It serves as a critical maritime corridor for trade and shipping among South and Southeast Asian nations while also being the endpoint for some of the world's largest river systems. Its monsoon-driven climate and nutrient-rich waters make it a hub of biodiversity and a lifeline for hundreds of millions of people living along its shores.
More in Rivers And Seas Of The World 1-24
Elsewhere in the Rivers And Seas Of The World universe
Spotted an error? Know more?
This is a living reference — every entry is fact-audited, and reader corrections feed straight into our audit queue. Suggest an edit · See this site's audit record