174. Thiruvarur

Communist Party of India (Marxist) held the seat; the winning margin widened from 12.0% to 23.7%.

• Won on a lower shareIts own vote share fell 8.2% — it held because the rest of the vote was more divided.
• New challengerADKJL (ADKJL) finished second with 24.1% — it did not contest here in 1984.
• Vote fragmentedThe top two took only 71.8% between them, down from 100.0% — the field split more ways.

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