Why MGR’s election from Andipatti was challenged in the court?

Why MGR’s election from Andipatti was challenged in the court?

The petitions did not question the polling or counting process. Instead, they raised a legal issue: whether MGR was constitutionally qualified to contest at all, in view of how and before whom he had made and subscribed the oath or affirmation mandated under Article 173 (a) of the Constitution.