22. Cotchery

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin widened from 15.3% to 17.0%.

Boundaries were redrawn between 1974 and 1977 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 8.2% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 20.8% — it did not contest here in 1974.
• Vote fragmentedThe top two took only 58.7% between them, down from 76.8% — the field split more ways.

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