67. Kodungallur

Communist Party of India held the seat; the winning margin narrowed from 4.9% to 3.7%.

• Won on a lower shareIts own vote share fell 3.7% — it held because the rest of the vote was more divided.
• New challengerIndian National Congress (INC) finished second with 44.6% — it did not contest here in 1982.
• Vote fragmentedThe top two took only 92.8% between them, down from 99.1% — the field split more ways.

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