13. Nihal Singh Wala

Communist Party of India held the seat; the winning margin widened from 2.5% to 12.8%.

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 8.0% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 73.8% 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.