168. Bilaspur

Indian National Congress held the seat; the winning margin narrowed from 43.3% to 3.9%.

• Won on a lower shareIts own vote share fell 12.4% — it held because the rest of the vote was more divided.
• New challengerBharatiya Jana Sangh (BJS) finished second with 42.4% — it did not contest here in 1951.
• Vote consolidatedThe top two candidates took 88.7% of the vote between them, up from 74.3% — a tighter two-way contest.

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