  We perform a multi-parameter global analysis of all data available till date
from the ATLAS, CMS and Tevatron experiments, on the signals of a Higgs boson,
to investigate how much scope exists for departure from the standard model
prediction. We adopt a very general and model-independent scenario, where
separate deviations from standard model values are possible for couplings of
the observed scalar with up-and down-type fermions, W-and Z-boson pairs, as
well as gluon and photon pair effective interactions. An arbitrary phase in the
coupling with the top-pair, and the provision for an invisible decay width for
the scalar are also introduced. After performing a global fit with seven
parameters, we find that their values at 95% confidence level can be
considerably different from standard model expectations. Moreover, rather
striking implications of the phase in top-quark coupling are noticed. We also
note that the invisible branching ratio can be sizeable, especially when the
couplings of the Higgs to W-and Z-pairs are allowed to be different.
