It is well known that neutrinos, which are most illusive subatomic elementary particles, have been copiously produced in the early universe as well as when when stars end their lives in supernova explosions. During the lepton era of the ``hot big bang'' theory, neutrinos, electrons and photons  which interact through the weak and electromagnetic forces are the dominant constituents. As most material in the
universe is in the form of a dense plasma, it is likely that collective interactions between the neutrinos and the plasma should play an important role. Professor Shukla's contributions to collective neutrino plasma interactions has  opened a new whole subject.  The concept of  the neutrino driving force that separtes charges is  a key factor for  the nonlinear  instabilities, generation of  intense magnetic fields and large scale inhomogeneities, etc.  The neutrino accelerator may produce gamma ray bursts. In the area of neutrino plasma physics, Prof. Shukla is collaborating with  Prof. Hans Bethe,  Prof.  Bob Bingham, Prof. John Dawson, Prof.  Tito Mendonca, Prof. Luis  Silva,  Prof. Lennart Stenflo, and Prof. Nodar  Tsintsadze.