55. Sundernagar

Indian National Congress held the seat; the winning margin narrowed from 57.7% to 6.3%.

Boundaries were redrawn between 1951 and 1967 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 36.8% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 35.8% — it did not contest here in 1951.
• Vote fragmentedThe top two took only 77.9% between them, down from 100.0% — the field split more ways.

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