354. Madras South

Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 19.6% to 4.2%.

• Won on a lower shareIts own vote share fell 7.3% — it held because the rest of the vote was more divided.
• New challengerSwatantra Party (SWA) finished second with 47.9% — it did not contest here in 1967.
• TurnoutTurnout fell 7.0% to 65.7%.

Written from the constituency figures by a fixed set of rules — no language model.