Explanation: The Kabartal Wetland (locally known as Kanwar Lake) is Asia’s largest oxbow lake situated in the Begusarai district of Bihar.

• It is a residual oxbow lake, formed due to the meandering of Gandak River, a tributary of Ganga.
• Covering the majority of the Indo-Gangetic plains in northern Bihar, this lake was declared a Ramsar site in 2020, making it the first wetland in Bihar to be included in the Ramsar convention.

Source: FORUMIAS