454. Sardhana

Indian National Congress held the seat; the winning margin narrowed from 33.4% to 5.9%.

• Won on a lower shareIts own vote share fell 22.6% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 28.6% — it did not contest here in 1957.
• Vote fragmentedThe top two took only 63.0% between them, down from 80.6% — the field split more ways.

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