151. Kaisarganj

Indian National Congress held the seat; the winning margin narrowed from 30.2% to 5.4%.

• Won on a lower shareIts own vote share fell 17.4% — it held because the rest of the vote was more divided.
• New challengerPraja Socialist Party (PSP) finished second with 36.7% — it did not contest here in 1957.
• Vote fragmentedThe top two took only 78.7% between them, down from 88.7% — the field split more ways.

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