182. Bakhtiarpur

Indian National Congress held the seat; the winning margin narrowed from 36.4% to 20.3%.

• Won on a lower shareIts own vote share fell 4.3% — it held because the rest of the vote was more divided.
• New challengerSOC (SOC) finished second with 34.8% — it did not contest here in 1957.
• Vote consolidatedThe top two candidates took 89.8% of the vote between them, up from 82.3% — a tighter two-way contest.

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