** Shares of Aurizon Holdings Ltd AZJ.AX rise as much as
4.3% to A$3.9 - set for best day since March 3, if gains hold
** Australia's largest rail freight operator says it will
sell its East Coast Rail (ECR) business to Magnetic Rail Group
for A$425 mln ($284.71 mln) in cash
** Says co is not expected to make any capital tax gains,
with A$125 mln of the proceed to be deferred for 12 months
** Sees positive earnings contribution from sale of ECR will
be more than offset by transaction costs
** Aurizon shares hit highest level since Dec 1
** Stock up 6.6% this year, as of last close
(Reporting by Poonam Behura in Bengaluru)
((Poonam.Behura@thomsonreuters.com;))