7. Badarpur

Indian National Congress held the seat; the winning margin narrowed from 22.6% to 8.7%.

• New challengerPraja Socialist Party (PSP) finished second with 44.4% — it did not contest here in 1951.
• Vote consolidatedThe top two candidates took 97.6% of the vote between them, up from 61.1% — a tighter two-way contest.

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