A PRS Legislative Research analysis shows the Tamil Nadu Legislative Assembly's yearly sittings fell from an average of 64 days in the first term (1952-57) to 32 days in the 16th term (2021-26).
- The 16th Assembly (11 May 2021 to 10 May 2026) met for 155 days in all; Speaker M. Appavu cited 161 days in his valedictory speech on 20 February.
- Averages: 46 days (13th, 2006-11), 40 (14th), 34 (15th).
- 201 Bills were introduced and 194 passed; about 78% were cleared the same day they were introduced.
- 82% got assent within three months; nine took over a year, six of them deemed approved after a 2025 Supreme Court judgment.
- Leading themes: education (13%), urban governance (12%), law and order (8%).