Hi Friends I have one doubt, any one can help me?

I have one website, in this site, there is one menu named product. Under this product I have the option for adding existing application selected from a dropdown. After adding these applications below the product category, I have to display this product category under the existing applications.

The layout is like this,

Product1
• Application 1
• Application 2
• Application 3

Product 2
• Application 2
• Application 3
• Application 4

While opening the Application 2 page I have to come like this

Application 2

• Product 1
• Product 2