CAML Query with more than two conditions

If we need to check more than 2 conditions in CAML Query then put Tag inside the original condition

Say for e.g. The following is the way for checking  more than 2 conditions in CAML Query

<Where>

     <And>

            <And>

                      <Eq><FieldRef Name=’ADId’ /><Value Type=’Text’>domain\user1</Value></Eq>

                     <Eq><FieldRef Name=’PopulationYear’ /><Value Type=’Text’>2011</Value></Eq>

           </And>

           <Eq><FieldRef Name=’RecordType’ /><Value Type=’Text’>Birthday</Value></Eq>

     </And>

 </Where>