  The cardinal focus of the present review is to explore the role of neutrinos
originating from the ultra-dense core of neutron stars composed of quark gluon
plasma in the astrophysical scenario. The collective excitations of the quarks
involving the neutrinos through the different kinematical processes have been
studied. The cooling of the neutron stars as well as pulsar kicks due to
asymmetric neutrino emission have been discussed in detail. Results involving
calculation of relevant physical quantities like neutrino mean free path and
emissivity have been presented in the framework of non-Fermi liquid behavior as
applicable to ultra-degenerate plasma.
