Dudhwa National Park is situated in ___________.

The correct answer is Option (3) → Lakhimpur Kheri, U.P.

Dudhwa National Park lies in the Lakhimpur Kheri district of Uttar Pradesh, on the border with Nepal in the Terai. It was declared a national park in 1977 and became part of the Dudhwa Tiger Reserve in 1987; it is known for its swamp deer (barasingha), tigers and the one-horned rhinoceros brought back to the park.