  We analyze high multiplicity proton-proton ($pp$) collision data in the
framework of the String Percolation Model (SPM) that has been successful in
describing several phenomena of multiparticle production, including the
signatures of recent discovery of strongly interacting partonic matter, the
Quark Gluon Plasma (QGP), in relativistic heavy-ion collisions. Our study in
terms of the ratio of shear viscosity and entropy density ($\eta/s$) and the
(LQCD) predicted signature of QCD change of phase, in terms of effective number
of degrees of freedom ($\epsilon /T^4$), reiterates the possibility of strongly
interacting collective medium in these events.
