The Feni (Bengali: ফেনী নদী ; ISO: Phēnī Nadī ) is a river in southeastern Bangladesh and Tripura state of India.

The Feni River originates in South Tripura district and flows through Sabroom town and then enters Bangladesh.

Feni River originates in South Tripura district and flows through Sabroom town and then enters Bangladesh.

"[5] Sabroom in South Tripura, in India, is only 18 to 20 kilometres (11 to 12 mi) from the Bay of Bengal, but it is a virtually landlocked territory.

The bridge was named "Maitri Setu" symbolizing the growing friendship and bilateral ties between India and Bangladesh.

This dam was constructed in 1985 to prevent flooding by surging the lower reaches of the Feni due to cyclones and make a large area suitable for agriculture.