10. Alipur Duars

Indian National Congress held the seat; the winning margin narrowed from 39.8% to 15.1%.

• Won on a lower shareIts own vote share fell 17.5% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 34.2% — it did not contest here in 1951.
• Vote fragmentedThe top two took only 83.4% between them, down from 93.6% — the field split more ways.

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