Thiru‑Vi‑Ka‑Nagar, Assembly Constituency No. 15, is a tightly packed inner‑city seat in central‑north Chennai that is deeply influenced by labour movements, Dalit politics and working‑class mobilisation. Named after noted social reformer Thiru V. Kalyanasundaram Mudaliar (Thiru.Vi.Ka), the constituency reflects the city’s older industrial‑residential fabric, characterised by compact housing layouts, small‑scale workshops and a strong reliance on public services. Unlike the city’s outer urban constituencies, political discourse in Thiru‑Vi‑Ka‑Nagar centres on social equity, housing stability, access to welfare schemes and the intense strain on basic civic infrastructure. Persistent local issues include persistent waterlogging and inadequate stormwater drainage, ageing and unsafe housing raising fire‑safety concerns, poor sanitation and irregular garbage collection, unreliable drinking water supply, overcrowding in government hospitals and schools, insufficient street lighting and public safety issues, severe lack of parks and recreational spaces, and weak grievance redressal mechanisms. In the 2021 Assembly elections, DMK’s P. Sivakumar alias Thayagamkavi won the Thiru‑Vi‑Ka‑Nagar seat with 81,727 votes, defeating AIADMK’s P.L. Kalyani, who secured 26,714 votes, by a margin of 55,013 votes. Earlier, in the 2016 polls, Sivakumar of DMK also won the constituency with 61,744 votes, defeating AIADMK’s V. Neelakandan, who secured 58,422 votes, by a margin of 3,322 votes