Hello Amar, No, it is not in maharashtra. UPES is in dehradun, uttarakhand state. If you are selected in the entrance exam, then you will be required to go to the dehradun campus in order to study. There are hostel facilities available, so don't worry about accomodation. There is no interview procedure as far as i know. you are provided admission on the basis of your performance in the UPESEAT.