221. Chainpur

Indian National Congress held the seat; the winning margin widened from 3.3% to 16.7%.

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 3.5% — it held because the rest of the vote was more divided.
• Runner-up changedSecond place passed from Swatantra Party (SWA) to Praja Socialist Party (PSP).
• Vote fragmentedThe top two took only 63.3% between them, down from 83.8% — the field split more ways.

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