I am primarily interested in the dynamics and evolution of galaxies. I use N-body simulation as well as semi-analytic techniques to address a variety of issues in this subject. Current topics of research includes the formation and evolution of bars and bulges in disk galaxies; spiral structures; the role of dark matter haloes and super-massive black holes. I am also interested in the dynamical modeling of galaxies (both external and the Milky Way) using stellar kinematics as well as gas kinematics data and inferring about the distribution of dark matter. My other interests includes development of galaxy models; study galaxy interaction and mergers, long term evolution.