I am pursuing my M.Sc in Physics, Can I do my P.hd there in Condensed matter physics/nano technology/nonlinear dynamics??

Hi Biplab, you can go ahead with the PhD. But to carry out research in such a detailed subject you will have to contact the universities and find out if any research in this field is going on or not. If yes they would invite you for the research. Or may you can look into some other country. If you