The Tamil Nadu Legislative Assembly is the unicameral legislature of the state of Tamil Nadu, in south India. It has existed since 1 November 1986.^[1] As of 2022, it comprises members from 234 constituencies, who are democratically elected using the First-past-the-post system. The presiding officer of the Assembly is called the Speaker. The term of the Assembly is five years unless it is dissolved earlier.

Constituencies were delimited in 2007 based on the 2001 Census of India and following draft proposals. Some constituencies are reserved for candidates from the Scheduled Castes and Scheduled Tribes.^[2][3] The first general elections following the delimitation exercise were those of 2011.

#	Constituency	Reserved	District	Lok Sabha constituency	Constituency since	Constituency Map
1	Gummidipoondi	-	Thiruvallur	Tiruvallur	1967
2	Ponneri	SC			1952
3	Tiruttani	-		Arakkonam	1952
4	Thiruvallur	-		Tiruvallur	1952
5	Poonamallee	SC			1977
6	Avadi	-			2011
7	Maduravoyal	-	Chennai	Sriperumbudur	2011
8	Ambattur	-			2011
9	Madavaram	-		Tiruvallur	2011
10	Thiruvottiyur	-		Chennai North	1967
11	Dr. Radhakrishnan Nagar				1977
12	Perambur	-			1952
13	Kolathur	-			2011
14	Villivakkam	-		Chennai Central	1977
15	Thiru-Vi-Ka-Nagar	SC		Chennai North	2011
16	Egmore	SC		Chennai Central	1957
17	Royapuram	-		Chennai North	1977
18	Harbour	-		Chennai Central	1952
19	Chepauk-Thiruvallikeni	-			2011
20	Thousand Lights	-			1952
21	Anna Nagar	-			1977
22	Virugambakkam	-		Chennai South	2011
23	Saidapet	-			1952
24	Thiyagarayanagar	-			1957
25	Mylapore	-			1952
26	Velachery	-			2011
27	Shozhinganallur	-			2011
28	Alandur	-		Sriperumbudur	1977
29	Sriperumbudur	SC	Kancheepuram		1952
30	Pallavaram	-	Chengalpattu		2011
31	Tambaram	-			1977
32	Chengalpattu	-		Kanchipuram	1952
33	Thiruporur	-			1952
34	Cheyyur	SC			2011
35	Madurantakam	SC			1952
36	Uthiramerur	-	Kancheepuram		1952
37	Kancheepuram	-			1952
38	Arakkonam	SC	Ranipet	Arakkonam	1952
39	Sholinghur	-			1952
40	Katpadi	-	Vellore		1962
41	Ranipet	-	Ranipet		1952
42	Arcot	-			1952
43	Vellore	-	Vellore	Vellore	1952
44	Anaikattu	-			1977
45	Kilvaithinankuppam	SC			2011
46	Gudiyattam	SC			1952
47	Vaniyambadi	-	Tirupattur		1952
48	Ambur	-			1957
49	Jolarpet	-		Tiruvannamalai	2011
50	Tirupattur	-			1952
51	Uthangarai	SC	Krishnagiri	Krishnagiri	2011
52	Bargur	-			1977
53	Krishnagiri	-			1952
54	Veppanahalli	-			2011
55	Hosur	-			1952
56	Thalli	-			1977
57	Palacode	-	Dharmapuri	Dharamapuri	1967
58	Pennagaram	-			1952
59	Dharmapuri	-			1952
60	Pappireddippatti	-			2011
61	Harur	SC			1952
62	Chengam	SC	Tiruvannamalai	Tiruvannamalai	1952
63	Tiruvannamalai	-			1957
64	Kilpennathur	-			2011
65	Kalasapakkam	-			1952
66	Polur	-		Arani	1952
67	Arani	-			1952
68	Cheyyar	-			1952
69	Vandavasi	SC			1952
70	Gingee	-	Viluppuram		1952
71	Mailam	-			2011
72	Tindivanam	-		Viluppuram	1952
73	Vanur	SC			1962
74	Villupuram	-			1952
75	Vikravandi	-			1952
76	Tirukkoyilur	-	Kallakurichi		1952
77	Ulundurpettai	-			1952
78	Rishivandiyam	-		Kallakurichi	1962
79	Sankarapuram	-			1962
80	Kallakurichi	SC			1952
81	Gangavalli	SC	Salem		2011
82	Attur	SC			1952
83	Yercaud	ST			1957
84	Omalur	-		Salem	1952
85	Mettur	-		Dharamapuri	1957
86	Edappadi	-		Salem	1952
87	Sankari	-		Namakkal	1957
88	Salem (West)	-		Salem	2011
89	Salem (North)	-			2011
90	Salem (South)	-			2011
91	Veerapandi	-			1957
92	Rasipuram	SC	Namakkal	Namakkal	1952
93	Senthamangalam	ST			1957
94	Namakkal	-			1952
95	Paramathi Velur	-			2011
96	Tiruchengodu	-			1952
97	Kumarapalayam	-		Erode	2011
98	Erode (East)	-	Erode		2011
99	Erode (West)	-			2011
100	Modakkurichi	-			1952
101	Dharapuram	SC	Tiruppur		1952
102	Kangayam	-			1952
103	Perundurai	-	Erode	Tiruppur	1957
104	Bhavani	-			1952
105	Anthiyur	-			1962
106	Gobichettipalayam	-			1957
107	Bhavanisagar	SC		Nilgiris	1967
108	Udhagamandalam	-	Nilgiris		1957
109	Gudalur	SC			1967
110	Coonoor	-			1957
111	Mettupalayam	-	Coimbatore		1952
112	Avanashi	SC	Tiruppur		1957
113	Tiruppur (North)	-		Tiruppur	2011
114	Tiruppur (South)	-			2011
115	Palladam	-		Coimbatore	1957
116	Sulur	-	Coimbatore		1957
117	Kavundampalayam	-			2011
118	Coimbatore (North)	-			2011
119	Thondamuthur	-		Pollachi	1952
120	Coimbatore (South)	-		Coimbatore	2011
121	Singanallur	-			1971
122	Kinathukadavu	-		Pollachi	1967
123	Pollachi	-			1952
124	Valparai	SC			1967
125	Udumalaipettai	-	Tiruppur		1952
126	Madathukulam	-
127	Palani	-	Dindigul	Dindigul
128	Oddanchatram	-
129	Athoor	-
130	Nilakottai	SC
131	Natham	-
132	Dindigul	-
133	Vedasandur	-		Karur
134	Aravakurichi	-	Karur
135	Karur	-
136	Krishnarayapuram	SC
137	Kulithalai	-		Perambalur
138	Manapaarai	-	Tiruchirappalli	Karur
139	Srirangam	-		Tiruchirappalli
140	Tiruchirappalli (West)	-			2011
141	Tiruchirappalli (East)	-			2011
142	Thiruverumbur	-
143	Lalgudi	-		Perambalur
144	Manachanallur	-
145	Musiri	-
146	Thuraiyur	SC
147	Perambalur	SC	Perambalur
148	Kunnam	-		Chidambaram
149	Ariyalur	-	Ariyalur
150	Jayankondam	-
151	Tittakudi	SC	Cuddalore	Cuddalore
152	Virudhachalam	-
153	Neyveli	-
154	Panruti	-
155	Cuddalore	-
156	Kurinjipadi	-
157	Bhuvanagiri	-		Chidambaram
158	Chidambaram	-
159	Kattumannarkoil	SC
160	Sirkazhi	SC	Mayiladuthurai	Mayiladuthurai
161	Mayiladuturai	-
162	Poompuhar	-
163	Nagapattinam	-	Nagapattinam	Nagapattinam
164	Kilvelur	SC
165	Vedaranyam	-
166	Thiruthuraipoondi	SC	Thiruvarur
167	Mannargudi	-		Thanjavur
168	Thiruvarur	-		Nagapattinam
169	Nannilam	-
170	Thiruvidaimarudur	SC	Thanjavur	Mayiladuthurai
171	Kumbakonam	-
172	Papanasam	-
173	Thiruvaiyaru	-		Thanjavur
174	Thanjavur	-			1952
175	Orathanadu	-			1967
176	Pattukkottai	-			1952
177	Peravurani	-			1967
178	Gandarvakottai	SC	Pudukkottai	Tiruchirappalli	1957
179	Viralimalai	-		Karur	1967
180	Pudukkottai	-		Tiruchirappalli	1952
181	Thirumayam	-		Sivaganga	1952
182	Alangudi	-			1957
183	Aranthangi	-		Ramanathapuram	1952
184	Karaikudi	-	Sivaganga	Sivaganga	1952
185	Tiruppattur	-			1952
186	Sivaganga	-			1952
187	Manamadurai	SC			1952
188	Melur	-	Madurai	Madurai	1952
189	Madurai East	-			1962
190	Sholavandan	SC		Theni	1962
191	Madurai North	-		Madurai	1952
192	Madurai South	-			1952
193	Madurai Central	-			1962
194	Madurai West	-			1967
195	Thiruparankundram	-		Virudhunagar	1957
196	Thirumangalam	-			1952
197	Usilampatti	-		Theni	1957
198	Andipatti	-	Theni		1962
199	Periyakulam	SC			1952
200	Bodinayakanur	-			1957
201	Cumbum	-			1952
202	Rajapalayam	-	Virudhunagar	Tenkasi	1962
203	Srivilliputhur	SC			1952
204	Sattur	-		Virudhunagar	1952
205	Sivakasi	-			1957
206	Virudhunagar	-			1952
207	Aruppukkottai	-			1952
208	Tiruchuli	-		Ramanathapuram	1962
209	Paramakudi	SC	Ramanathapuram		1952
210	Tiruvadanai	-			1957
211	Ramanathapuram	-			1952
212	Mudhukulathur	-			1952
213	Vilathikulam	-	Thoothukudi	Thoothukkudi	1952
214	Thoothukkudi	-			1952
215	Tiruchendur	-			1952
216	Srivaikuntam	-			1957
217	Ottapidaram	SC			1962
218	Kovilpatti	-			1952
219	Sankarankovil	SC	Tenkasi	Tenkasi	1952
220	Vasudevanallur	SC			1967
221	Kadayanallur	-			1967
222	Tenkasi	-			1952
223	Alangulam	-		Tirunelveli	1952
224	Tirunelveli	-	Tirunelveli		1952
225	Ambasamudram	-			1952
226	Palayamkottai	-			1977
227	Nanguneri	-			1952
228	Radhapuram	-			1957
229	Kanniyakumari	-	Kanniyakumari	Kanniyakumari
230	Nagercoil	-			1952
231	Colachal	-			1954
232	Padmanabhapuram	-			1971
233	Vilavancode	-			1952
234	Killiyoor	-			1962