** Australian gold stocks .AXGD fall as much as 4%, their lowest level since February 9

** Sub-index slumps tracking broader gold prices GOL/ which fall 2%

** Northern Star Resources NST.AX fall as much as 4.1% and Evolution Mining EVN.AX sheds 4.4%

** Sub-index has risen 1.1% this year, including session moves

(Reporting by Roshan Thomas in Bengaluru)

((Roshan.Thomas@thomsonreuters.com;))