Name the political party which is not a part of a composite central government, but their member has been elected speaker of the thirteenth Lok Sabha.

Explanation

G.M.C. Balayogi was elected Speaker in the Twelfth Lok Sabha and also served as Speaker in the Thirteenth Lok Sabha; he was a member of the Telugu Desam Party. This party did not join the coalition government of the National Democratic Alliance (NDA).