** Regis Resources RRL.AX falls as much as 8.1% to A$3.73; marks biggest pct drop since August 19, 2024
** Gold explorer produces 89.7Koz of gold in March-quarter vs year-ago 90.6Koz
** RRL last down 2.2%, trimming YTD gains to ~56%
(Reporting by Jasmeen Ara Shaikh in Bengaluru)
((JasmeenAraIslam.Shaikh@thomsonreuters.com;))