278. Chail

Indian National Congress held the seat; the winning margin narrowed from 20.3% to 16.2%.

• Won on a lower shareIts own vote share fell 12.3% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 28.2% — it polled just 1.9% in 1985.
• Vote fragmentedThe top two took only 72.7% between them, down from 93.1% — the field split more ways.

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