Tributary | Distributary |
1. It is a stream which flows into a mainstream (or parent) river. | 1. It
is completely reverse of a tributary which branches off and flows away from
the mainstream. |
2. A tributary does not flow directly into a sea, ocean or lake. | 2. It may or may not fall directly into a sea, ocean or lake. |
3. Tributaries and the main stream river drain the surrounding drainage basin of its surface water and groundwater. | 3. The distributaries normally form a delta or estuary. |
4. Yamuna is tributary of the Ganga. | 4. The Hooghly is a distributary of the Ganga. |