64. Mangalur

Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 21.1% to 18.4%.

• Won on a lower shareIts own vote share fell 4.4% — it held because the rest of the vote was more divided.
• New challengerNCO (NCO) finished second with 33.8% — it did not contest here in 1967.
• Vote fragmentedThe top two took only 86.1% between them, down from 92.2% — the field split more ways.

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