** Shares of Pilbara Minerals Ltd PLS.AX rise as much as
3.4% to A$5.160, their highest level since July 20
** PLS marks its biggest intraday climb since July 26; on
track for a fifth straight session of gains, if trend holds
** PLX biggest gainer in the ASX 200 benchmark index .AXJO
** Co says drill programme resulted in mineral resource
estimate increasing by 109 million tonnes to 414 million tonnes
at its Pilgangoora lithium operation in Western Australia
** Adds updated mineral resource now contains 4.75 mt of
lithium oxide
** PLX up 33.1% this year, as of last close, vs a 4.1%
increase in the ASX 200 benchmark
(Reporting by Sameer Manekar in Bengaluru)
((Sameer.Manekar@thomsonreuters.com; Twitter: https://twitter.com/sameer_manekar))