302. Sardarpur

Indian National Congress held the seat; the winning margin narrowed from 38.2% to 18.4%.

• Won on a lower shareIts own vote share fell 18.3% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 30.3% — it polled just 1.8% in 1980.
• Vote fragmentedThe top two took only 79.0% between them, down from 95.8% — the field split more ways.

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