When two rivers meet it is called confluence. It applies to place where two or more bodies of water merge. There are 10 major confluence around the world.
The rivers merge in Mukoodal are
The Missouri and the Ohio rivers are the two major rivers that merge into the Mississippi.
A junction. I live in a place called Grand Junction where three rivers merge.
Both the rivers merge together in Bangladesh before they merge into Arabin Sea.
Streams often merge with one another to become rivers.
The Gila and Colorado rivers merge near Yuma Arizona.
The Blue Nile and White Nile merge near Khartoum, Sudan to form the Nile.
Khartoum is near where the Blue Nile and White Nile merge into the Nile River.
Confluence is the joining of two water flows (rivers, streams) into a single stream.
An estuary.
Estuary
India contains the Himalaya mountains and several rivers. India also has canyons and two plateaus which merge into coastal plains.