India has 41 wetlands, the highest in South Asia, with two more added to the list of recognised sites of international importance under the treaty of Ramsar Convention. 

• The Lonar lake in Maharashtra and Sur Sarovar, also known as Keetham lake, in Agra, have been added to the list of recognised Ramsar sites. 
• Lonar lake in Maharashtra, the only crater lake of country, and Sur Sarovar, also known as Keetham lake, in Agra.  
• “Wetlands are the world”s natural water filters and one of the most productive ecosystem on the planet”. 
• Recently, Kabartal in Bihar”s Begusarai district was recognised as a wetland of international importance, the first such wetland in the state, under the Ramsar Convention, according to the Union Environment Ministry. 

Source: Outlook India (https://www.outlookindia.com/newsscroll/2-more-wetlands-in-india-added-to-list-of-recognised-sites-under-ramsar-convention/1976470)