Mate recognition mechanism is one of the driving forces for speciation. Studies in this field permit reconstruction of evolutionary stepping stones. Our recent research has shifted focus from the geographic context of speciation to the mechanisms that drive the evolution of reproductive isolation between populations. Advertisement calls and reproductive mode could be key factors that contribute to reproductive isolation. Our studies cover these aspects of amphibian behaviour too. Our findings from the Ghats have revealed novel reproductive modes. Evolution of amplexus and development is another focus area for our team.