There have been two streams of developments in string model building, namely string-cosmology and string-phenomenology. The first one focuses on understanding the challenging issues related to cosmology (such as realizing de-Sitter solutions, embedding of (post-)inflationary scenarios etc.) while the second stream addresses issues like realizing MSSM-spectrum, supersymmetry-breaking etc. The standard underlying approach of model building in string cosmology and string phenomenology has been considered quite independently and subsequently turns out to be too simplistic for resulting in realistic models. Qualitatively speaking, the reason is that the string-cosmology approach mostly needs the understanding of the ‘global’ aspects while the string-phenomenology approach mostly deals with the knowledge of ‘local’ aspects about the visible sector.

The prime goal of our current/near-future research activities is to combine the two (local/global) aspects into a single framework. In this context, we have been working on a systematic study of model building aspects using the type-IIB superstring compactifications in the so-called LARGE Volume Scenario (LVS) framework.