  The standard perception is that the detection of high energy (TeV energies
and above) neutrinos from an astrophysical object is a conclusive evidence for
the presence of hadronic cosmic rays at the source. In the present work we
demonstrate that TeV neutrinos can also be originated from energetic electrons
via electromagnetic interactions in different potential cosmic ray sources with
flux levels comparable to that of the hadronic originated neutrinos at high
energies. Our findings thus imply that at least a part of the neutrinos
observed by Icecube observatory may be originated from energetic electrons. The
present analysis further suggests that only a combine study of TeV gamma rays
and neutrinos over a wide energy range from an astrophysical object can
unambiguously identify the nature of their parents, hadrons or leptons.
