** Light & Wonder's Australia-listed shares plunge as much as 24.4% to A$124.62, lowest since Feb. 6

** Stock on track for its worst day ever

** U.S-based gaming co gets preliminary injunction order from U.S. District Court of Nevada for its Dragon Train game after rival Aristocrat Leisure's unit filed an intellectual property infringement claim

** Stock biggest loser on benchmark ASX 200 index , which is down 0.3%

** More than 260,000 shares traded, 2.4x the 30-day avg

** LNW up 15.5% YTD, while AXJO loses 7.1%

(Reporting by Nikita Maria Jino in Bengaluru)

((Nikita.Jino@thomsonreuters.com;))