Two possible reason reasons for river capture taking place in before capture and after capture

Before capture:

1. Increased erosion in the capturing river's watershed, leading to a steeper gradient and faster flow rate, allowing it to capture the neighboring river.
2. A tectonic event such as uplift or faulting that creates a new pathway for the river to flow, diverting it away from its original course and towards the neighboring river.

After capture:

1. Changes in the climate or land use patterns causing alterations in the flow of the capturing river, resulting in the redirection of water towards the captured river.
2. Increased human interference such as dam construction or channelization, artificially altering the flow of the rivers and leading to a capture event.