15. Ghorasahan

Indian National Congress held the seat; the winning margin narrowed from 9.3% to 8.1%.

• Won on a lower shareIts own vote share fell 5.1% — it held because the rest of the vote was more divided.
• New challengerLKD (LKD) finished second with 24.3% — it did not contest here in 1980.
• Vote fragmentedThe top two took only 56.7% between them, down from 65.6% — the field split more ways.

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