Unification and Model Building, Astroparticle Physics and Neutrinos
  This report summarises the work done during the Workshop on High Energy Physics Phenomenology 4 (S.N.Bose National Centre for Basic Sciences, Calcutta, India, Jan 2-14,1996) in Working Groups IV (Unification and Model Building) and V (Astroparticle Physics and Neutrinos). 
Amitava Raychaudhuri (University of Calcutta) and Probir Roy (Tata   Institute)