139. Purnea

Communist Party of India (Marxist) held the seat; the winning margin widened from 12.5% to 27.2%.

• Won on a lower shareIts own vote share fell 8.1% — it held because the rest of the vote was more divided.
• New challengerJanata Dal (JD) finished second with 12.7% — it did not contest here in 1985.
• Vote fragmentedThe top two took only 52.6% between them, down from 83.5% — the field split more ways.

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