Rudrasagar Lake, also known as Twijilikma, is a lake located in Melaghar, Tripura, India. The Government of India's Ministry of Environment, Forest and Climate Change has identified Rudrasagar as one of the wetlands of National Importance for conservation and sustainable use based on its bio-diversity and socio economic importance. The secretary general of the Ramsar Convention has declared Rudrasagar Lake as a wetland of international importance. This certificate has been communicated by Ministry of Environment and Forests, Govt. of India on 29 February 2007.