4. Ratabari

Indian National Congress held the seat; the winning margin narrowed from 35.3% to 3.5%.

• Won on a lower shareIts own vote share fell 25.8% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 73.7% between them, down from 93.5% — the field split more ways.

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