The Meghna is a distributary of the great river Brahmaputra. The Meghna is formed inside Bangladesh by the joining of the Surma and Kushiyara rivers originating from the hilly regions of eastern India. Down to Chandpur, Meghna is hydrographically referred to as the Upper Meghna. After the Padma joins, it is referred to as the Lower Meghna. In Daudkandi, Comilla, Meghna is joined by the great river
Gomoti, created by the combination of many streams. This river reinforces Meghna a lot and increases the waterflow considerably. The pair of bridges over Meghna and Gomoty are two of the country's largest bridges. The Dakatua River is also part of the river system in Comilla district. After Chandpur, when the river has the combined flow of the Padma and Jamuna it moves down to the Bay of Bengal in an almost straight line. In her course from Chandpur to Bay of Bengal, the Meghna braids into a number of little rivers including the Pagli, Katalia, Dhonagoda, Matlab and Udhamodi. All of these rivers flow out from the Meghna and rejoin again at points downstream. Near Bhola, just before flowing into the Bay of Bengal, the river divides into two main streams in the Ganges delta and separates an island from both sides of the mainland. The western stream is called Ilsha and the eastern one is called Bamni.
