i am trying to detect the touch on android and is it possible to have a same function with touch which can work same as OnMouseUp() function
Seriously, Google that stuff:
There is a complete manual on unity. Took me just one google search.
if you want to develop the touch functionality you have to write input.getmousebuttondown,input.getmousebuttonup,input.getmousebutton will work.One more way also there touch pahse began,thouchphase.end. OnMouseUp() and OnMouseDown() will work only for windows,mac.It won't support for mobiles(ios and android).
check this links