Our research focuses on life histories, population dynamics and community assembly of aquatic insects. We deal with the taxonomy, ecology, molecular/phylogeny, diversity and distribution patterns mainly focus on major groups of aquatic insects include mayflies (Ephemeroptera), stoneflies (Plecoptera), caddishflies (Trichoptera), aquatic & semi-aquatic bugs (Heteroptera), dragonflies and damselflies (Odonata) and beetles (Coleoptera). We also use these taxa as model to answer fundamental research questions on the role of biotic and abiotic factors and use current approaches of biosystematics, including DNA (barcoding) analysis, along with classical taxonomical approach. Results of our studies are being utilised and implemented for nature conservation projects.