The Dampa Tiger Reserve is situated in the state of Mizoram. Mizoram is one of the northeastern states of India. It shares its borders with Assam, Manipur, and Tripura. The Dampa Tiger Reserve is located in the western part of Mizoram, near the Bangladesh border. It is a wildlife sanctuary and was declared a tiger reserve in 1994.

Option 1, Assam, is incorrect as Assam is a neighboring state of Mizoram but does not house the Dampa Tiger Reserve.

Option 2, Karnataka, is incorrect as Karnataka is a state located in southern India and is not related to Mizoram or the Dampa Tiger Reserve.

Option 4, Orissa, is incorrect as Orissa (now called Odisha) is a state located in eastern India and has no connection to the Dampa Tiger Reserve.

Alert - correct answer should be 3 Mizoram