129. Naihati

Indian National Congress held the seat; the winning margin narrowed from 3.1% to 1.3%.

• Won on a lower shareIts own vote share fell 8.9% — it held because the rest of the vote was more divided.
• New challengerJanata Dal (JD) finished second with 41.1% — it did not contest here in 1987.
• Vote fragmentedThe top two took only 83.5% between them, down from 99.4% — the field split more ways.

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