Now you have to stack them..
1. You have to put the Graham Crackers in the glass tupperware. Try to make sure there aren't any holes. And if the whole rectangle of the Graham Cracker can't fit in one row then you can also break it into pieces.
2. Then put the sliced mangoes on. Also try to make sure there aren't any gaps between them.
3. Now pour the mixed condensed milk on top of the mangoes. Just make sure it is well spread around.
4. Then do this repeatedly till your tupperware is filled.