** Shares of Australia's Aura Energy fall as much as 12.9% to A$0.135, its biggest intraday pct fall since Aug. 5
** Stock at its lowest level since Nov. 15
** Uranium explorer says got commitments to raise A$9 mln ($5.73 mln) via placement
** Placement at an issue price of A$0.14 per share, which represents a discount of 9.7% to stock's last close
** Funds from placement to help accelerate co's Tiris Uranium Project development in Mauritania
** Stock fallen 48.1% this year, as of 0022 GMT
($1 = 1.5694 Australian dollars)
(Reporting by Roshan Thomas in Bengaluru)
((Roshan.Thomas@thomsonreuters.com))