229. Bikramganj

Indian National Congress held the seat; the winning margin narrowed from 13.9% to 0.8%.

Boundaries were redrawn between 1962 and 1967 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 18.3% — it held because the rest of the vote was more divided.
• Runner-up changedSecond place passed from SOC (SOC) to Communist Party of India (CPI).
• Vote fragmentedThe top two took only 40.9% between them, down from 64.3% — the field split more ways.

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