** Shares of oOh!media OML.AX rise as much as 7.55% to A$1.355 in early trade, their highest level since January 19
** Stock logs largest intraday pct gain since April 29
** Outdoor advertising and media firm receives non-binding indicative proposal from I Squared Capital for A$765.9 million ($553.98 million)
** ISQ proposal at A$1.45 per share, a 15.1% premium to stock's last close and higher than Pacific Equity Partners' A$1.40 per-share offer
** Co says board will not recommend both proposals, has provided both PEP and ISQ limited due diligence
** Stock up 3.1% YTD, including day's moves
($1 = 1.3826 Australian dollars)
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))