27. Sriperumbudur

Indian National Congress held the seat; the winning margin narrowed from 12.1% to 11.1%.

• Won on a lower shareIts own vote share fell 6.2% — it held because the rest of the vote was more divided.
• New challengerViduthalai Chiruthaigal Katchi (VCK) finished second with 32.7% — it did not contest here in 2001.
• Vote fragmentedThe top two took only 76.4% between them, down from 87.7% — the field split more ways.

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