The DMK alliance swept all four assembly by-elections in Tamil Nadu, dealing a severe blow to the opposition AIADMK and widening the ruling party's majority in the state legislature.
The results triggered an internal power struggle within the AIADMK, with senior leaders blaming each other for the party's poor performance.
Political analysts attribute DMK's success to the government's welfare schemes, including the Kalaignar Magalir Urimai Thogai monthly assistance of ₹1,000 to eligible women.