356. Chingleput

Dravida Munnetra Kazhagam held the seat; the winning margin widened from 25.3% to 28.3%.

• New challengerNCO (NCO) finished second with 31.7% — it did not contest here in 1967.
• Vote fragmentedThe top two took only 91.7% between them, down from 97.3% — the field split more ways.
• TurnoutTurnout fell 5.3% to 72.2%.

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