Dr. K. Ramesh’s research interests “Three Body Scattering problem “which is one of the fundamental problems in celestial mechanics. The classical Newtonian three-body gravitational problem has the subject of investigations for over four hundred years. Apart from the classical three body problem, restricted three body problem too has been of interests as it finds applications in satellite dynamics. An estimation of orbital elements in binary-binary encounters, encounters between single stars using numerical simulations. Also, the interaction of galaxies which often result in the formation of merged system or formation of galactic tails and bridges.