In recent years, India has entered into several mega-projects in the area of Physics & Astronomy. Some of these are ITER/LHC/INO/SKA/TMT/ASTROSAT/LIGO etc. These are projects where India is a partner country in a consortium of International Community with a participation of the order on 10% in cash or kind. These mega-projects will provide enormous opportunity for the researchers in these areas. The talk will describe the main aspects of these projects.