50. Sirauli

Indian National Congress held the seat; the winning margin narrowed from 13.8% to 0.8%.

• Won on a lower shareIts own vote share fell 23.2% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 25.6% — it did not contest here in 1957.
• Vote fragmentedThe top two took only 52.0% between them, down from 85.4% — the field split more ways.

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