Database Design Question

Question

I have Users into my web application and each user has these fields
1-Name 2- Email 3-Password 4-Security Question 5-Security Answer 6-District 7-Tehsil 8-UCS 9-Villages 

The Rules are as follows 
The District have Tehsils and the tehsil have UCs and the UCs have villages they are cascade in nature 


and each user can have many district or one district,IF one district then due to cascade he may have one or more tehsil and due to tehsil cascade he may have one or more UCs and due to cascade UCs he may have one or more villages .




What is the database design any example please share and how to save and show records in edit mode assume that we have a checkboxlist control for all these four entities Please responds