19. Alandur

Dravida Munnetra Kazhagam held the seat; the winning margin widened from 0.7% to 16.4%.

• Won on a lower shareIts own vote share fell 6.3% — it held because the rest of the vote was more divided.
• New challengerADKJL (ADKJL) finished second with 26.5% — it did not contest here in 1984.
• Vote fragmentedThe top two took only 69.4% between them, down from 97.5% — the field split more ways.

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