How to get column name by value which exist in same column?

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SQL-Server-2005

SQL

SQL-Server

i have a table :

Cong    BJP      AAP     Winner   Win By
25554   36985    26929   BJP      10056
19753   24569    36239   AAP      11670

i got the result this by using this query

declare @temptable table
(
Againstvote int

)


insert into @temptable select (CASE WHEN n_cong >= n_bjp AND n_cong >= n_aap THEN n_cong
                   WHEN n_bjp >= n_aap THEN n_bjp
                   ELSE n_aap
           END)-n_winby

            FROM m_assembly_election1993 order by n_winby desc
select Var1 from @temptable

Againstvote
26929   
24569    

All value of Againstvote column exist in my table as bold item.

Now I want column name of these values also

expect result is:

Againstvote  AgainstPartyName
26929           AAP
24569           BJP