Thakuran River (also called Jamira) is a tidal estuarine river that forms a wide estuary in and around the Sundarbans

Sundarbans

The Sundarbans [Sundarban Tour Booking-9051115228] is the largest single block of tidal halophytic mangrove forest in the world.The name Sundarban can be literally translated as "beautiful jungle" or "beautiful forest" in the Bengali language...

 in South 24 Parganas district

South 24 Parganas district

South 24 Parganas district is an important district of West Bengal State with its district headquarters in Alipore. It has the urban fringe of Calcutta on one side and the remote riverine villages in the Sundarbans....

 in the India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

n state

States and territories of India

India is a federal union of states comprising twenty-eight states and seven union territories. The states and territories are further subdivided into districts and so on.-List of states and territories:...

 of West Bengal

West Bengal

West Bengal is a state in the eastern region of India and is the nation's fourth-most populous. It is also the seventh-most populous sub-national entity in the world, with over 91 million inhabitants. A major agricultural producer, West Bengal is the sixth-largest contributor to India's GDP...

.

It originates near Jaynagar

Jaynagar Mazilpur

Jaynagar Majilpur is a town and a municipality in South 24 Parganas district in the Indian state of West Bengal. It is a part of the area covered by Kolkata Metropolitan Development Authority. Both the places are also identified separately a Jaynagar and Majilpur...

 and has a number of connections with the Saptamukhi

Saptamukhi River

Saptamukhi River is a tidal estuarine river in and around the Sundarbans in South 24 Parganas district in the Indian state of West Bengal.The Saptamukhi originates near Sultanpur and flows between Kulpi and Mathurapur blocks. It has a connection with the Muri Ganga River and Deogra Khal. It falls...

 and forms the boundary between Mathurapur

Mathurapur

Mathurapur I is an administrative division in Diamond Harbour subdivision of South 24 Parganas district in the Indian state of West Bengal. Mathurapur police station serves this block...

 and Jaynagar blocks.

The Thakuran system is very wide near the sea face. The major lateral branches of the Thakuran system on the western side are the Kadrakhali Khal, the Damdama Khal, the Moni River, the Pukchara, the Raidighi, the Shibua Gang, the Pakhirali Khal, and the Ross Creek,.The link channel on the eastern side are mostly meander loops, such as the Bainchapi Khal, the Gura Khal, the Kaikalmari-Ajmalmari-Suia River, the Dulibhasani Gang, and the Chulkati gang. These loops are interconnected amongst themselves by an intricate mesh of tidal channels.

Parts of the forested area around the Thakuran are protected. They retain their natural mangrove

Mangrove

Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes N and S...

habitat. The area east of the Thakuran falls under the core area of the Sundarbans Tiger Reserve - an area where no access is generally allowed to casual bird-watchers or tourists.

In certains parts the areas around the Thakuran are protected by embankments, which are at times breached by tidal floods.