what tables should I create

Question

I have user into my system having information like(name,email,password,id,District,Tehsil,UC,Village)


ONE User can have one or many Districts 
One user can have NO or many TEhsil
One user can have NO or many UCS
One user can have no or many Villages 


These are cascade in nature District----------Populates-------->Tehsils

                                       Tehsils----------Populates---------UC

                                        UC-------------Populates-------Villages 


I have create table from where my checkbox list getting values like this cascade nature but for save what i should do how many table should i have to create to save these records.
please share some example if any one have