The correct answer is A - 3, B - 4, C - 2, D - 1.List I (Waterfall)List II (State)A.Barkana1.Karnataka B.Dudhsagar2.Goa C.Duduma3.OdishaD.Kiliyur4.Tamil NaduHence, Option 2 is correct.Dudhsagar waterfall:Dudhsagar Falls is a four-tiered waterfall located on the Mandovi River in the Indian state of Goa.It is 60 km from Panaji by road and is located on the Guntakal‚¬œVasco da Gama rail route about 46 km east of Madgaon and 80 km south of Belagavi.The falls are located in the Bhagwan Mahaveer Sanctuary and Mollem National Park among the Western Ghats.The waterfall forms the border between Karnataka and Goa states.The Barkana Falls, Sita RiverThe Barkana Falls, formed by the Sita River, is a waterfall located near Agumbe in the Shimoga district of the state of Karnataka, India and the waterfall is among the ten highest waterfalls in India.This waterfall region is filled with water only during the rainy season.Barkana Falls is located at a distance of 10 kilometers from Agumbe and has a height of about 500 feet the area is surrounded by a thick forest of Western Ghats.Duduma WaterfallIt is situated on the border of Orissa and Andhra Pradesh. This waterfall has its origin in the River Machkund.Machkund Hydro Electric Power Project is dependent on this waterfall.It is a collaborative project between the Government of Andhra Pradesh and the Government of Odisha.Kiliyur FallsIt is a waterfall in the Shervaroyan hill range in the Eastern Ghats, Tamil Nadu, India.The waters overflowing the Yercaud Lake fall 91 m into the Kiliyur Valley.