<s>[INST] What is the Lyngkhat Area? [/INST] The Lyngkhat Area is one of the areas mentioned in the given context, which falls under the Tripura Sector. It includes sub-areas like Lyngkhat-I/Kulumcherra and Lyngkhat-III/Sonarhat, with boundaries defined by boundary pillars and various geographical features such as nallahs and existing International Boundary Pillars. </s>