Since 2003, I am actively engaged in the palaeobiological investigations of the Proterozoic sedimentary basis of Indian subcontinent. My research is focused on the Precambrian micropalaeontology in order to build-up the biostratigraphy, palaeoecology, and palaeoenvironment of the fossil-bearing strata through the ages in global perspectives. My research involves fieldwork, microscopy, systematic, taphonomic and paleoecological analyses. Besides, I look into antiquity, affinity, early evolution, diversification and radiation of eukaryotes, multicellular organisms and its relationship to environmental change in Proterozoic biosphere. I have significantly contributed to the various aspects of micropalaeontology to understand the evolution of eukaryotes. Advent and evolution of the eukaryotes in the geological records are shrouded in mystery. The presence of eukaryotes in the Meso-Neoproterozoic Era is fairly established but their antiquity and tempo of early eukaryotic diversification remain open questions in evolutionary biology.
Among various other Proterozoic fossils, the acritarchs are considered as the oldest eukaryotic candidates during Precambrian. To resolve such issues in the Proterozoic biosphere, rocks of the Vindhyan, Marwar, Chhattisgarh and Krol Belt of the Indian subcontinent were extensively explored for acritarchs studies. My ongoing work targets to resolve the problems on the early eukaryotes, multicellularity and biomineralization and biostratigraphy of the Meso-Neoproterozoic Chhattisgarh Supergroup in Central India.