Sort of. But it doesn't sound like a quick fix, and you'll want to be careful that the component instances are using separate databases. For good or ill, Joomla just isn't set up this way.

Cool. nice to hear that it can be done . any suggestions ? coz, i will be using different databases for both of them, but still will joomla allow me to install it ?

i am using coursemanager. this offers section only for courses, but i want to add an extra section for classrooms, i thought of injecting code into it, but for some reasons adding extra code just breaks the component, so i tought if i could install it twice (independently) i could make it work and moreover i could have more flexibility on handling both courses and classrooms.