Value does not fall within the expected range while passing a spfieldlookupvalue in a caml QUERY

Question

i have to pass a column from master list -single line of text - and this will be the lookup of another column in another list
splist1---> column1 [ free text]
splist2--> column2  [ lookup column of the above list -splist1]
now am writing a  caml query :
   objDisciNodeQuery.Query =
                                      string.Format(
                                   "<OrderBy>" +
                                     "<FieldRef Name='ID' />"
+
                                  "</OrderBy>" +
                                   "<Where>" +
                                    "<And>" +
                                      "<Eq>" +
                                         "<FieldRef
Name='somecolumn' />" +
                                         "<Value
Type='Text'>{0}</Value>" +
                                      "</Eq>" +
                                      "<Eq>" +
                                         "<FieldRef
Name='column2' LookupId='TRUE' />" +
                                         "<Value
Type='Lookup'>{1}</Value>" +
                                      "</Eq>" +
                                     "</And>" +
                                   "</Where>", valueofsomecolumn, lookupidvalueofcolumn2);
                                    SPListItemCollection splistItemAssocCollec
= null;
                                    splistItemAssocCollec = splist2.GetItems(objDisciNodeQuery);
here it throws Value does not fall within the expected range
Anyone has idea why i am getting this error, .
any ideas  are appreciated.

Answer 1

We can use lookup column in caml query link this
<Where>
<Eq>
<FieldRef Name=’Departments’ LookupId=’TRUE’ />
<Value Type=’Lookup’>10</Value>
</Eq>
</Where>
Multi lookup column reference 
http://naimmurati.wordpress.com/2013/12/03/multi-lookup-fields-in-caml-queries-eq-vs-contains/