hi raja,

medicine is in demand everywhere . medicine can never go out of demand as long as there are humans and diseases. and that applies to all parts of the world. no matter how developed the country, diseases , accidents, etc are everywhere.these just can never stop. but ofcourse india is the second populous country of the world so obviously number of patients and diseases here are far greater in number than the u.s. so you get to practice very well. but infrstructure is undoubtedly better in the u.s but practicing medicine there requires lot of money and is very difficult.