Get latest articles and stories on India at LatestLY. Vembanad lake, the second largest wetland system in India after the Sunderbans in West Bengal, is shrinking and its unique biodiversity is under threat of ecological decay despite it being declared as a Ramsar site 20 years ago. India News | Vembanad Lake Continues to Shrink, Decay 20yrs After Being Declared Ramsar Site.