9. Doimukh

Indian National Congress held the seat; the winning margin widened from 3.9% to 16.3%.

• Won on a lower shareIts own vote share fell 12.0% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 23.6% — it did not contest here in 1980.
• Vote fragmentedThe top two took only 63.6% 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.